Victory for the ACT Exam 16e TG Sample

UNIT 4 Geometry

Tt ehset eidt ebmyst ihne tAhCi sTs Me cat ti oh ne ma cact oi cms pTae ns ty. Yt hoeu iwn -i cl ll awsos rrke vt hi erwo uogfht ht heegiet oe mm se twr yi t shkyi lol su ra ns tducdoennctes pi nt s c l a s s . Te ahci hs tceoanc cheepr t’ sagnudi ds ter iant ec lguyd. eTsh ee xspt ul adneant ti ot ne xs tf oi nr cel ua cdhe si t ae nmaanss ww ee rl l kaes yt ef oa rc ht hi ni sg Umnai tt eorni apl at og ei n3t 5r o1d. u c e GEOMETRIC NOTATION Tanhde cAoCnTgMruaetnhceem. Faotircesxiatemmpsleu,se standard geometric notation for length, segments, lines, rays, PQ represents a line segment with points P and Q as endpoints, and PQ represents the length of PQ . A line passing through points P and Q is represented by ,0 PQ while PQ represents the ray beginning at point P and passing through point Q . Finally, the symbol “ , ” represents the term “congruent.” LINES AND ANGLES

STUDENT TEXT, p. 184 1. In the �igure below, x = ? A. B. 4 6 5 0 C. 75 D. 120

EXPLANATIONS

1. (D) Mathematics/Geometry/Lines and Angles CC: 7.G.B.5 CCRS: AVG.G.2 Difficulty Level = 1; Teaching Time = 3–6 minutes; Purpose = Example T18h0e°d, esogree measure of a straight angle is x x 60 180 120 & . Ag ul teesrsn”astti rvaetl ey,gayp. Spilmy pt hl ye l“oeol ikmai tn taht ee - a n d - drawing of the angle x : it is de�initely laal rl goef rt ht he aann as wr iegrhct haoni gc lees (e9x0c °e)p. tTfhoerr e f o r e , (D) can be eliminated.

Don’t Forget This! 1 . Tms threeaa isdguehrgter aeonef ga l e i s 180°. 2 . Tmr i hgeheatsdauenrggerleeoefi sa9 0 ° . 3 . Tnd euh gme r teboeet sra lionf a circle is 360°.