Question

Plz help what’s the length of the side

Answer 1

12

Explanation:

Pythagoras Theorem is clearly used in this question.

To Calculate the Hypotenuse:

C =
`√(a^2+b^2)`

The Adjacent angle has already given as 9, so you can factor that into the question.

In Order to calculate the Opposite angle you need to use the following formula.

`b = √(c^2-a^2)`

With the integers we already have for both Hypotenuse and Adjacent factored in this will be your equation:

`b = √(15^2-9^2) = 12`

Therefore you answer is 12, Hope this helps, feel free to make as brainilest.