Question

Please someone help me please

Answer 1

Explanation:

take 56 degree as reference angle

using cos rule

cos 56=adjacent/hypotenuse

0.55=12/x

x=12/0.55

x=21.81

x=21.8

Answer 2

x = 21.46

Explanation:

`cos 56 = (adjacent)/(hypotenuse) = (12)/(x)\\\\x = (12)/(cos 56) = 21.46`