I need help like badd..

y = 27°

Step-by-step explanation:

We know that in a triangle, all 3 angles add up to 180 degrees. So we can find the sum of the 2 angles we know to find out angle z, which is the angle across from y, and we know they have the same measure. 63 + 90(the measure of the angle across from x) = 153. We can then do 180 - 153 = 27, which is the measure of z. Since z is congruent to y, we know that y = 27 degrees.

Hope this helps :)

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

8/k

step-by-step explanation: