Question

Can someone help me with this

Answer 1

x = 10

Explanation:

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

sin45° =
`(1)/(√(2) )` , then

sin45° =
`(opposite)/(hypotenuse)` =
`(x)/(10√(2) )` =
`(1)/(√(2) )` ( cross multiply )

`√(2)` × x = 10
`√(2)` ( divide both sides by
`√(2)` )

x = 10