Question

What is the value of X? (geometry, right triangles)

Answer 1

C

Explanation:

Using the sine ratio in the right triangle and the exact value

sin30° =
`(1)/(2)` , then

sin30° =
`(opposite)/(hypotenuse)` =
`(x)/(10)` =
`(1)/(2)` ( cross- multiply )

2x = 10 ( divide both sides by 2 )

x = 5 → C