The sine rule (law of sines)

Question 1

In triangle ABC, angle A = 51°, angle B = 66° and side a = 20 cm. Find side b to 1 decimal place.

Answer 

Question 2

In triangle ABC, a = 20 cm, b = 5 cm and angle A = 63°. Find angle B (acute) to 1 decimal place.

Answer 

Question 3

In triangle ABC, angle A = 53°, angle B = 50° and side a = 18 cm. Find side b to 1 decimal place.

Answer 

Question 4

In triangle ABC, a = 13 cm, b = 4 cm and angle A = 78°. Find angle B (acute) to 1 decimal place.

Answer 

Question 5

In triangle ABC, angle A = 49°, angle B = 51° and side a = 7 cm. Find side b to 1 decimal place.

Answer 

Question 6

In triangle ABC, a = 18 cm, b = 13 cm and angle A = 48°. Find angle B (acute) to 1 decimal place.

Answer 

Question 7

In triangle ABC, angle A = 74°, angle B = 33° and side a = 14 cm. Find side b to 1 decimal place.

Answer 

Question 8

In triangle ABC, a = 15 cm, b = 14 cm and angle A = 74°. Find angle B (acute) to 1 decimal place.

Answer 

Question 9

In triangle ABC, angle A = 69°, angle B = 36° and side a = 15 cm. Find side b to 1 decimal place.

Answer 

Question 10

In triangle ABC, a = 20 cm, b = 5 cm and angle A = 49°. Find angle B (acute) to 1 decimal place.

Answer 

Question 11

In triangle ABC, angle A = 77°, angle B = 76° and side a = 13 cm. Find side b to 1 decimal place.

Answer 

Question 12

In triangle ABC, a = 13 cm, b = 10 cm and angle A = 64°. Find angle B (acute) to 1 decimal place.

Answer 

Question 13

In triangle ABC, angle A = 63°, angle B = 40° and side a = 14 cm. Find side b to 1 decimal place.

Answer 

Question 14

In triangle ABC, a = 11 cm, b = 5 cm and angle A = 56°. Find angle B (acute) to 1 decimal place.

Answer 

Question 15

In triangle ABC, angle A = 55°, angle B = 80° and side a = 10 cm. Find side b to 1 decimal place.

Answer 

Question 16

In triangle ABC, a = 17 cm, b = 11 cm and angle A = 43°. Find angle B (acute) to 1 decimal place.

Answer