Question

Please someone help me please

Answer 1

Answer:

Step-by-step 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

Answer:

x = 21.46

Step-by-step explanation:

$cos 56 = \frac{adjacent}{hypotenuse} = \frac{12}{x}\\\\x = \frac{12}{cos 56} = 21.46$