Question

A triangle's three angles are in the ratio of 5:7:8. What is the measure of the smallest angle? I don't know how to set up the proportions.

Answer 1

"A triangle's three angles are in the ratio of 5:7:8"

that means the angles are 5x, 7x, 8x for some number x

Answer 2

the angles add to 180

5x+7x+8x = 180

solve for x and use x to compute 5x to get your answer

Answer 3

thank you.

Answer 4

you're welcome

Answer 5

Is the answer 45?

Answer 6

yes it is

Answer 7

Thank you. I understand the problem now.

Answer 8

I'm glad you do

Answer 9

:)