In abc, bc = a = 16, ac = b = 10, and m = 22°. which equation can you use to find the value of c = ab?

By cos Rule: c² = a² + b² -2abcosФ

c = 7.7

Step-by-step explanation:

∵ AC = 10 , BC = 16 , m∠C = 22°

∴ We can use the cos Rule:

∵ c² = a² + b² -2abcos(C)

∴ c² = (10)² + (16)² - 2 × 10 × 16 cos(22)

∴ c² = 100 + 256 - 320cos(22) = 59.301167

∴ c = 7.7

i would have to say it is c.

b. astronomers