MATH SOLVE

4 months ago

Q:
# A triangle has one angle measuring 3X degrees the second angle measures 2X +20° and the third angle measures 4X -20° what is the value of X

Accepted Solution

A:

The sum of all 3 interior angles in a triangle is 180°.

so 3x+(2x+20)+(4x-20)=180

9x+20-20=180

9x=180

x=180/9

x=20

so 3x+(2x+20)+(4x-20)=180

9x+20-20=180

9x=180

x=180/9

x=20