Question

Find the value of a. HELP PLEASE!!

Answer 1

Greetings!

Answer:

a = 17

Step-by-step explanation:

Because all the lines are congruent (same length) as indicted by the lines, this means that every angle is the same.

180 ÷ 3 = 60

So every angle is 60°

This also means that:

4a - 8 = 60

Isolate the 4a by moving the -8 over to the other side, making it a +8:

4a = 60 + 8

4a = 68

Now simply divide both sides by 4 to get the value of 1a:

$\frac{4a}{4} = \frac{68}{4}$

a = 17

So a = 17

Hope this helps!