Question

How do I solve?
Angle is 60°
Bottom is X
Top is 12
(cm)​

Answer 1

x = 6

Explanation:

using the cosine ratio in the right triangle and the exact value

cos60° =
`(1)/(2)` , then

cos60° =
`(adjacent)/(hypotenuse)` =
`(x)/(12)` =
`(1)/(2)` ( cross- multiply )

2x = 12 ( divide both sides by 2 )

x = 6