Question

In

Δ
ABC, BC = a = 16, AC = b = 10, and m
∠
C
= 22°. Which equation can you use to find the value of c = AB?

Answer 1

You can use the Law of Cosines to solve for c:

c2 = a2 + b2 − 2ab cos C = 162 + 102 − 2(10)(16) cos 22°.

Explanation:

plato!!

Answer 2

7.7

Explanation:

use law of cosines

c² = a² + b² - 2ab * cosC

c² = 16² + 10² - 2(16)(10)cos22

c² = 256 + 100 - 320 * 0.927183854566787

c² = 59.3011665386

c ≈ 7.7