Sine rule, cosine rule and area of a triangle

Question 1 of 10

In triangle ABC, b = 9 cm, c = 6 cm and A = 50°. Find a, to 1 decimal place.

Question 2 of 10

Find the area of a triangle with sides 6 cm and 11 cm and included angle 70°, to 1 decimal place.

Question 3 of 10

The area of a triangle with sides 10 cm and 6 cm and an included angle of 30° is ___ cm².

Question 4 of 10

In triangle ABC, a = 15 cm, B = 30° and C = 65°. Find b, to 1 decimal place.

Question 5 of 10

The area of a triangle with sides 6 cm and 5 cm and an included angle of 30° is ___ cm².

Question 6 of 10

In triangle ABC, b = 8 cm, c = 11 cm and A = 60°. Find a, to 1 decimal place.

Question 7 of 10

The area of a triangle with sides 12 cm and 5 cm and an included angle of 30° is ___ cm².

Question 8 of 10

In triangle ABC, b = 9 cm, c = 8 cm and A = 30°. Find a, to 1 decimal place.

Question 9 of 10

In triangle ABC, b = 8 cm, c = 10 cm and A = 100°. Find a, to 1 decimal place.

Question 10 of 10

In triangle PQR, PR = 6 cm, QR = 9 cm and angle R = 50°. Find (a) PQ, (b) the area of the triangle, each to 1 decimal place.