Triangle xyz is isosceles. angle y measures a°. what expression represents the measure of angle x?

An isosceles triangle has two sides equal and two angles equal. It is given in the problem that ∠Y is equal to a². We can solve for the remaining angles and the solution is shown below:
180°=∠X+∠Y+∠Z
180°=∠X+a° +∠Z
180°-a°-∠Z=∠X
If ∠Z is the same with ∠Y, then ∠X is equal to 180°-2a°.

180-2a

Step-by-step explanation:on edginuity

First, find the amount of pennies in each stack, which is ten as the problem says. Next, multiply the number of stacks by the number of pennies in each stack (50 x 10). That will be your answer. Hope this helps!