Question

Solve the triangle. B = 73°, b = 15, c = 10

Answer 1

Answer:

a= 18.02

Step-by-step explanation:

Use the cosine rule to find a.

a^2 = (b^2)+(c^2) - cosA

a^2 = (15^2)+(10^2) - cos73

a^2 = 324.7

a = $\sqrt{324.7}$

a= 18.02