What is the value of x? 15 20 60 180 An isosceles triangle with base angles labeled 60 degree and the other labeled open parenth

Question

Alina [70]

4 years ago

8

What is the value of x? 15 20 60 180 An isosceles triangle with base angles labeled 60 degree and the other labeled open parenth

esis 3 x closed parenthesis degree.

Mathematics

1 answer:

Brums [2.3K] · Answer 1 · 2022-01-04T14:15:16+03:00

Brums [2.3K]4 years ago

8 0

Remember that the sum of the interior angles of a triangle is always 180 degrees. If the two base angles are 60 and 60 degrees respectively, that leaves 60 degrees for the the 3rd angle. Let 60 degrees = 3x and find x.

x=20.

Check: does 60 + 60 + 3(20) = 180?