Question

What is he value of a

Answer 1

a = 52 -- READ EXPLANATION, YOU WON'T BE PREPARED FOR A TEST WITHOUT IT.

Explanation:

We know 2a + 24 is on one side of a diameter line, along with <a

to find out what it is, we can do the equation (2a + 24) + a = 180

this would simplify as 3a + 24 = 180

180 - 24 = 156

156 / 3 = 52

so we now know that a = 52

Answer 2

A. 78

Explanation:

2a+24= 180

-24 -24

2a= 156

divide each side by 2

a= 78