Question

Unit 9 test: Trigonometry
What is the right answer to this problem?

Answer 1

Explanation:

take 65 degree as reference angle

using cos rule

cos 65=adjacent/hypotenuse

0.42=x/25

0.42*25=x

10.5=x

Answer 2

x = 10.5

Explanation:

`cos 65 =\frac {adjacent}{hypotenuse} \\\\0.4226 = (x)/(25)\\\\0.4226 * 25 = x \\\\x = 10.565`