Find the value of x in the isosceles triangle shown

A) x=4

Step-by-step explanation:

-We know that the triangles are equal by using Angle-Angle-Side theorem.

-Take one of the triangles.

-We know that the base of the triangle will be 3 on both sides because they are both equal.

-By using the Pythagorean theorem, we can now find the answer for x.

5^2=3^2+x^2

25=9+x^2

subtract 9 from both sides.

16=x^2

To 'undo' the squaring of the x, we need to take the square root on both sides.

The answer would be 4 because 4^2 equals 16.

x=4

12*c

step-by-step explanation: