Question

MAP4C Lesson 18 Key Question

Lesson 18 MAP4C - Foundations for College Mathematics Key Question #18 1. Given each of the ratios below, state whether the unknown angle will be larger or smaller than the one given. b. Sin Y Sin 67 8.1 9.4 SinB Sin 39 11 C. Sin 35 6.4 Sin A 4.8 a 6.1 2. Given each of the ratios below, state whether the unknown side will be larger or smaller than the one given. Sin 47 Sin 20 Sin 13 6 a b. Sin 44 Sin 23 10.5 c. Sin 72 5.1 X 3. Find the length of the indicated side. 102 cm d F 4. Find the measure of angle C. 33 cm 57 cm 5. In A TUV, find the value of t, if ZT = 41°, ZU = 34°, and u = 15 cm. 6. In A EFG, find the value of e, if ZF = 37°, ZG = 49°, and f = 30 m. 7. In A ABC, find the value of ZA, if ZB = 35º, a = 7 cm, and b = 12 cm. In A QRS, find the value of Q, if ZS = 71°, q = 25 m, and s = 36 m. 8. 9. An architect designs a house that is 12 m wide. The rafters holding up the roof are equal length and meet at an angle of 68º. The rafters extend 0.6 m beyond the supporting wall. How long are the rafters? 10. Does the sine law apply to right triangles? Explain your answer.

Answer 1

o las sino a sim 39 6.1 Simba sim 39x11 -1.13 6:1 sin B a 1.13 since, value of simo lies between alto 1 il -Il sim oL so, sin B= 1013 is not possible. (b) siny i simbit 8!! qay simy a sim 67x8.1 : 0.793 904 ya Bina (0.793) 52.46° (c) simas 6.4 a SimA 4.8 sim Aasim 35x4e8 a 0.4302 6.4 A= sin(0.4302 ) = 25. ugo

(219) la sim 13 Sim 13 a sim ya 6 a x = 6x sim ya sim 13 119.5 lbs Sin५५ 10.5 asin 23 Y x 10.5 X siin 23 simuy 5.906 A simu? sims 3 102 d 102 cm 0439 ( E d da sin 53² x 10.2 sinuga da ll. q un کے sim 37° 57 sime 83 83cm 57cm 370 sin c . sim 37°x83 -0.876 $7 cisim "(0.8761 = [61.160