Question

If XYZ is an isosceles triangle with base , what is the measure of Z?

(Picture below.)

Answer 1

Isosceles means all sides are the same right?

Answer 2

two sides are the same

Answer 3

What is the formula to find it?

Answer 4

Answer is 60 degrees.

Answer 5

The answer would be 30 degrees, because both angle Z and angle Y have to be 30 (to equal 60).

Answer 6

Thank you @KenField.

Answer 7

Oh wait, it's 60 lol.

Answer 8

It is 60 because 120 is the external angle and since sum of Y + Z is equal to the external angle and Y=Z since triangle is isosceles,therefore Z = 60.

Answer 9

OH my bad. Didn't even think of the external angle haha.