Question

the lower base angles of an isoceles trapezoid are labeled 5x+1 and 2x+7. what is the size of the triangles?

Answer 1

You need to know the total degrees within a triangle. What is the sum of all three angles in any triangle?

Answer 2

When you learn that, then add up the two given angles (5x+1) + (2x+7).
Then subtract that sum from the total angle sum of a triangle.

Answer 3

How many degrees in a triangle??

Answer 4

This monolog is going to end shortly.

Answer 5

Good luck with this. You should google "triangle" there you will learn how many degrees are in a triangle.