Question

Find the value of x. The diagram is not to scale.
https://study.ashworthcollege.edu/access/content/group/af6e8f9f-40f5-4e73-9bd7-b87e13cc6d33/geometry_exam_4_files/mc016-1.jpg
A. X=60
B.X=21
C.X=15
D. None of these

Answer 1

?

Answer 2

Since the triangle is isosceles (2 sides are congruent), we know that the two bottom angles are congruent.

The angles on the flat side need to add up to 180°, I was just showing that relationship.

Plugging in the numbers on the image, we have:

5x = 180 - (5x - 30)

Answer 3

X=21??

Answer 4

Yup

Answer 5

Thanks :)