Geometry Final Exam Review ~ Circles
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1 nalytical Geometry- ommon ore Final Exam Preparation Name: Geometry Final Exam Review ~ ircles Multiple hoice Identify the choice that best completes the statement or answers the question. ssume that lines that appear to be tangent are tangent. is the center of the circle. Find the value of x. (Figures are not drawn to scale.) x P Q x 3. is tangent to circle at. Find the length of the radius r for = 5 and = 8.6. Round to the nearest tenth if necessary. The diagram is not to scale. r 5. and are all tangent to (not drawn to scale). J = 9, L = 10, and K = 14. Find the perimeter of. J L K - 1 -
2 nalytical Geometry- ommon ore Final Exam Preparation 10. Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale. D P x 17. and are diameters. Find the measure of arc ZWX. (The figure is not drawn to scale.) Y Z X R W Use the diagram for # is a diameter, and. The figure is not drawn to scale. P D 18. Find for = Which statement is NT true? a. arc arc D b. 20. Find m(arc D) for m(arc ) =
3 nalytical Geometry- ommon ore Final Exam Preparation 22. Given that D and D are right angles and m D = 41, what is the measure of arc D? (The figure is not drawn to scale.) D 23. Find the measure of. (The figure is not drawn to scale.) 24. Find m. (The figure is not drawn to scale.) 25. Given: m X = 150,, m Y = 92. Find each measurement. (The figure is not drawn to scale.) X Y Z a. m Z b. m(arc WZ) c. m W d. m(arc WX) W 26. Name the minor arc and find its measure. 27. Name the major arc and find its measure. D )
4 nalytical Geometry- ommon ore Final Exam Preparation 28. Find the circumference. Leave your answer in terms of. 18 in. 29 The circumference of a circle is 60 cm. Find the diameter, the radius, and the length of an arc of Find the length of arc XPY. Leave your answer in terms of. X 8 m Y P 31. The diameter of a wheel on Derrick s car is 28 inches. a. How far along the ground does the wheel travel after one complete rotation? b. If the wheel rolls 140 inches, how many rotations did it complete? 118º 32. Find the value of x. D 33. Find the value of x. 120 o 46º xº 190 o 32º x 6 2x 9 x Find the value of x
5 nalytical Geometry- ommon ore Final Exam Preparation 36. Find the value of x. 115 o 200 o x 37. If EF is a tangent line, find x. D 10 F 4 x E 38. Find the value of x in each figure below Given: ircle 0 with E E Prove: m = md Statements E E E E E ED E DE E ED D = D m = md Reasons Given Reason ank. S. Given. PT D. Inscribed ngles Intercepting rc onjecture E. Definition of ongruent rcs F. Vertical ngle onjecture G. Definition of ongruent H. Reflexive Property I. hord rcs onjecture - 5 -
6 nalytical Geometry- ommon ore Final Exam Preparation Geometry Final Exam Review ~ Dilations In the diagram, the dashed figure is the image of the solid figure. D E R S F T Q 1. Name the image of E. 2. Name the image of. 1. is a dilation of triangle by a scale factor of ½. The dilation is centered at the point ( 5, 5). Which statement below is true?.. 2. is a dilation of triangle by a scale factor of ½. The dilation is centered at the point (5, 5). What is the ratio of the area of to the area of. ½. 2. ¼ D. 4. D
7 nalytical Geometry- ommon ore Diagnostic Test -1 Line Reflection Translations Rotations Dilations Isometry Isometry Isometry Properties preserved: 1. distance 2. angle measure 3. parallelism 4. colinearity 5. midpoint Reverse rientation (letter order changed) Properties preserved: 1. distance 2. angle measure 3. parallelism 4. colinearity 5. midpoint Same rientation (letter order the same) Properties preserved: 1. distance 2. angle measure 3. parallelism 4. colinearity 5. midpoint Same rientation (letter order the same) NT isometry. Figures are similar. Properties preserved: 1. angle measure 2. parallelism 3. colinearity 4. midpoint Lengths not same. Same rientation (letter order the same) Notation: Notation: Notation: Notation: 3. Using the study chart above, complete the following: a. What properties do the dilations have in common with the isometries? b. an you make a detailed mind map that compares the different transformations shown here? 4. In the triangles shown is dilated by a factor of ⅔ to form. Given that and, what is the?... D. 5. In is dilated by a factor of ⅔ to form. Given that and RS = 8, what is? - 1 -
8 6. If we D,2 then the correct diagram would be: riginal ) ) ) D) m m m' m m' m m' m 7. a) This dilation centered at is a reduction / enlargement b) The ratio of this dilation is : 4.5 cm 1.5 cm ' c) Write the dilation using subscripts: Geometry Final Exam Review ~ rea Find the area. The figure is not drawn to scale in. 40 in. 33 in. 3 yd 10 yd 3. 9 cm 8 cm 13 cm 9 cm 11 cm - 8 -
9 in in in in in. 7 in. 8 in. 12 in. 7. The area of a parallelogram is 420 cm 2 and the height is 35 cm. Find the corresponding base. 8. Given the regular hexagon, find the measure of each numbered angle Find the area of a regular hexagon with an apothem 16.5 feet long and a side 19 feet long. Round your answer to the nearest tenth
10 10. Find the area of the circle. Leave your answer in terms of. 3.6 m 11. Find the area of the figure to the nearest tenth Find the area of a sector with a central angle of 180 and a diameter of 5.6 cm. Round to the nearest tenth. 13. Find the area of the shaded region. Leave answers in terms of. (5,7) (9,0) x rectangle 14. regular polygon has external y angles equal to 12. If each edge has a length of 16 inches, what is the length of the radius? 15. alculate the area of a regular decagon (10 sides) with edge lengths of 18 cm. 16. Find the area of a regular pentagon that is inscribed in a circle of radius of 10 inches. 17. a. b. c. d. 24 cm 8 cm 45 perimeter of square is 48 cm 80 2 cm 4 cm
11 18. cube has a volume of 64 cubic meters. Suppose the dimensions are doubled. What is the volume of the new cube? 19. Find the volume of a cone if its radius is 3 cm and its slant height is 5 cm. 20. cylindrical fish tank is 10 feet in diameter and 6 feet high. How much water can it hold? 21. Find the volume of the sphere if its radius is 3 cm. 22. Plambells makes two different size cans for their chicken noodle soup. oth cans are similar in shape where the large can is 5 inches tall and the small can is 4 inches tall. a. If the small can holds 12 ounces of soup, how much will the large can hold? b. How much more tin is necessary to make the large can compared to the small can? 23. alculate the ratio of the areas of the two similar figures. Geometry Final Exam Review ~ Right Triangles Find the length of the missing side. Figures are not drawn to scale
12 Find the length of the missing side. Leave your answer in simplest radical form m. 7 m Ferris 6 5. Wayne used the diagram to compute the distance from Ferris to Dunlap to utte. How much shorter is the distance directly from Ferris to utte than the distance Wayne found? 15 mi Dunlap 20 mi utte 6. triangle has sides of lengths 12, 14, and 19. Is it a right triangle? Explain. 7. In triangle, is a right angle and 45. Find. Round your answer to the nearest tenth. 11 ft 8. Find the length of the hypotenuse
13 9. Find the length of the leg. If your answer is not an integer, leave it in simplest radical form Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form x y x 12. Find the value of x and y, rounded to the nearest tenth. x y The length of the hypotenuse of a triangle is 4. Find the perimeter. 14. Write the tangent ratios for and. P R 20 Q
14 Find the value of x to the nearest degree x The students in Mr. ollin s class used a surveyor s measuring device to find the angle from their location to the top of a building. They also measured their distance from the bottom of the building. The diagram shows the angle measure and the distance. To the nearest foot, find the height of the building. uilding 100 ft 17. large totem pole in the state of Washington is 100 feet tall. t a particular time of day, the totem pole casts a 249- foot-long shadow. Find the measure of to the nearest degree. 18. Write the ratios for sin and cos Find the value of x. Round to the nearest tenth. 19. x
15 x 21. n airlpane pilot sights the top of a control tower at a 22º angle of depression. The airplane is 2000 ft above the tower. How far is the airplane from the tower? 22. alculate the value of x: x Which of the following is equal to cos 35 ) sin 35 ) cos 55 ) sin 55 D) cos 145 Geometry Final Exam Review ~ Similarity (Ratio & Proportion) 1. The two rectangles are similar. Which is a correct proportion for corresponding sides? 4 m 12 m 8 m x 2. model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to the length of the model? 3. The Sears Tower in hicago is 1450 feet high. model of the tower is 24 inches tall. What is the ratio of the height of the model to the height of the actual Sears Tower?
16 ) ) Solve the proportion omplete the statements. E G F H D J 8. Figure. Name a pair of corresponding sides? 10. What is the measure of? R 47 U )) 63 )) Q S T V
17 11. Use the information in the diagram to determine the height of the tree to the nearest foot. 12. Michele wanted to measure the height of her school s flagpole. She placed a mirror on the ground 48 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she was 12 feet from the mirror. Using similar triangles, find the height of the flagpole to the nearest tenth of a foot
18 15. m = 2, n = 10, b = a h b You draw the similar triangles and find the other values: m n 16. List the short-cuts one could use to prove two triangles similar: (3) c 17. GIVEN: LN = 4 cm, KL = 5 cm LY = 12 cm, LH = 15 cm Is KLN HLY? K N 5 4 L Y H 18. GIVEN: TV XP PRVE: TVY PXY T Y V X P
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