Question

The angle measures of equilateral triangle ABC can be represented by (2x+10)degrees. Find the value of x.
A.) 60
B.) 35
C.) 55
D.) 25

Answer 1

All sides of the equilateral triangle = 2x + 10

3 ( 2x + 10 ) = 6x + 30
6x + 30 = 180
6x = 180-30 = 150
x = 150 / 6 = 25

Answer : x = 25