Using the figure below, write
expression that gives the recquired
unknown value.
1. If A = 15° and c = 37, find a.
2. If A = 76° and a = 13, find b.
3. If A = 49° and a = 10, find c.
4. If a = 21.2 and A = 71°,find b.
5.If a = 13 and B = 16°, find c.
6. If A = 19° and a = 11, find c.
7. If c = 16 and a = 7, find b.
8. If b = 10 and c = 20, find a.
9. If a = 7 and b = 12, find A.
10. If a = 8 and c = 12, find B.
1. a = c * sin(A) = 37 * sin(15°) ≈ 9.8
2. b = a * tan(A) = 13 * tan(76°) ≈ 44.6
3. c = a / sin(A) = 10 / sin(49°) ≈ 14.1
4. b = a * tan(A) = 21.2 * tan(71°) ≈ 54.2
5. c = a / sin(B) = 13 / sin(16°) ≈ 47.9
6. c = a / sin(A) = 11 / sin(19°) ≈ 34.6
7. b = c * tan(A) = 16 * tan(7°) ≈ 2.1
8. a = c * sin(B) = 20 * sin(10°) ≈ 3.5
9. A = arcsin(a / b) = arcsin(7 / 12) ≈ 34.8°
10. B = arcsin(a / c) = arcsin(8 / 12) ≈ 53.1°