EXERCISE
1. In the triangle ABC given that b = 5 cm , c = 8cm,/_ A = 1200. Evaluate The unknown side and angles .
2. In the Paralellogram ABCD given that AB = 18 cm , CD =6 cm , AD=12,BC = 15 Calculate the area ABCD
3. If sine 240 = 0,4 then sine 660 = …
4. If sine A =p, A on the 2nd Quadrant , then :
a. cos A b. tan A
5. Diketahui : 0 < A < 90 dan tan A = 2 , hitung :
5a. Sin (1800 + A) =
b. Cotan(2700 – A) .
6. Diketahui tan A0 = – 2 , sin B0 = 0,5. -90 <A< 0 dan B sudut tumpul
Hitunglah :
a. cos A.sin B – sin A . cos B
b. cos A . cos B – sin A . sin B
7. From a point A, the bearing of a radar mast, M, is 048 degree. From a second point B, which is 40 m due east of A, the bearing of the radar mast is 015 degree. Find angle AMB.
