Question

9.
Find the measures of x
(6x -1)º
77

Answer 1

D

Explanation:

This triangle has 2 equal sides. It also has 2 equal angles. They are marked

• 6x - 1
• 77

So the equation is 6x - 1 = 77 Add 1 to both sides

6x i- 1 + 1 = 77 + 1

6x = 78 Divide by 6

6x/6 = 78/6

x = 13