GEOMETRY Interior Angle Sums NAME Polygons DATE Per. Draw diagonals from the hollow point to each vertex of the polygon.

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Jerome Burke
7 years ago
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1 GEOMETRY I Agl Sums NAME Plygs DATE P. Daw dagals fm h hllw p ach v f h plyg. a) b) c) d) ) plyg agl a) ag b) pag c) hag d) spag ) cag # f sds # f s sum f s Wha s h fmula f h agl sum f a plyg wh sds? sum Daw dagals fm h hllw p ach v f h plyg. a) b) c) d) ) I ach plyg, wha s h sum f h agls dgs whs vcs a h hllw p? plyg a) agl b) squa c) hag d) cag # f sds # f sum f all s 3 s 3 3(18) 54 8(18) -m s aud sum Wha fmula wuld yu dv f h agl sum usg h mhd #3? A h fmulas #2 ad #4 qual? If s, by wha ppy?

2 GEOMETRY I Agl Masus NAME Plygs DATE P. A gula plyg s qulaal (has cgu sds) ad quagula (has cgu agls.) Cmpl h abl blw f ach gula plyg. plyg # f agls sum masu a) agl? b) quadlaal? c) pag? d) hag? ) cag? 3 (3-2) /3 6 (5-2)18 36/4 f) dcag? g) ddcag? (8-2)18/8 h) -g? (8) sds If a plyg has sds, hw d yu fd s agl sum? Hw d yu fd h agl masu f a gula -g? m W h gal fmula f h agl masu f a -g. Ths plygs a cv. Ths plygs a ccav. Daw all pssbl dagals f ach s f plygs. Cmpl ach df f cv ad ccav plygs. A plyg s cv f ad ly all s dagals a always h plyg.: A plyg s ccav f ad ly f a las dagal s h plyg: a) All f hs plyg s agls add up 90. Hw may sds ds hav? b) A ag has a agl masug 14. Hw may sds ds hav?

3 GEOMETRY E Agl Sums NAME Plygs DATE P. 2, 4, ad 6 a agls f h paal plyg pcud Us h ms adjac, supplmay, ad la pa w a df f a agl f a plyg a bcdal (f ad ly f) sam. Masu ach agl ad calcula h sum f hs quadlaal. Masu ach agl ad calcula h sum f hs agl. Sum f s Sum f s Daw h mag agls f ach gula plyg blw. Fd h masu f ach agl (HINT: supplmay agl). Calcula h agl sum. a) b) c) Sum f agl s s Sum f squa s s Sum f hag s s Wha wuld yu guss s h agl sum f ay cv plyg?

4 GEOMETRY E Agls NAME Plygs DATE P. 6. N ha ach / agl pa f a plyg s supplmay. gula plyg # f s masu sum Us ha fma calcula h agl masus ad sums f ach gula plyg h abl a gh. agl squa pag hag cag dcag (12)36 4( ) 7. a) Us h abl #6 gaph h agl sums f a -sdd gula plyg. a) Us h abl #6 gaph h agl 8. masus f a -sdd gula plyg. E S u m y # f sds f a gula -sdd plyg b) A h gaphd ps clla? c) Wha ds h gaph mply f 7 & 9? d) Fd a qua f h l hugh h ps.: ) Ds hs gaph vfy yu guss #5? f) Shuld hs pld ps b ccd? Why? y # f sds f a gula -sdd plyg b) A h gaphd ps clla? c) Is ach qu a agl masu? d) Fd a qua f h cuv hugh h ps.: (HINT: S pa c) 9. Rcall ha adjac / agls a la pas. S, a plyg wh -sds, h a als vcs. Hc, h a als pas f agls. Th sum f all f h plyg s supplmay agls s, whch s h sum f h ad s. Subsu h fmulas blw dv h agl sum f ay cv plyg. sum sum f supplmay s sum fmula sum ( ) ( ) 10. Shw ha: ( 2) 360

5 GEOMETRY I Agl Gaph NAME Plygs DATE P. Pl h ps f h masu f agl f a gula -g. Th fmula s. 180( 2) a g l # f sds f a gula -sdd plyg Whch gula plygs hav g agl masus? A h ps f hs gaph clla ds appa lvl ff? (If s, wh ds lvl?) Nam h gula plyg ha has smalls pssbl agl masu. Wha s ha masu? A gula plyg wh h lags pssbl g masu f a agl has hw may sds? Us h fmula h Guss ad Chck mhd.

6 GEOMETRY I Agl Sum Gaph NAME Plygs DATE P. Pl h ps f h agl sums f -sdd plygs h gaph blw. I Sum 180 ( 2) y 140 Why ds mak ss us a cuus l f hs gaph? Shuld ps b pld f 1 2? Why ()? a g l s u m Why a gav valus gaphd f h -as? Why a gav valus gaphd f h y-as? 6. A h gaphd ps clla? 7. Daw a l hugh hs ps. a) Wh ds css h -as? b) Wha ds hs ll yu abu a 2-sdd fgu? Wha s h slp f hs l? (Pay a h scalg f h gd) Fd a qua slp-cp fm y m + b f h l Ds hs vfy h fmula f agl sums, 180 ( 2)? Why? # sds

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We Keep Prices Low on Family Items! Pc Effc hu Dcmb 31, 2011 W Kp Pc L Famly Im! A, vy ccd ha g fd pc ll cau budg dffcul f may f u cum. All f u ff ll b ad kpg u pc l ad u qualy ad vc hgh. Wh ha, cmm ha h 40 pduc h ad ll chag pc hugh h d