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1 vote
I have to turn this in tonight please help :(

I have to turn this in tonight please help :(-example-1

2 Answers

5 votes

Answer:

116

Explanation:

21x + 12 = 180

-12 -12

21x = 168

÷21 = ÷21

x = 8

14 x 8 + 4

112 +4

116

User Assane
by
8.1k points
8 votes

Answer:

angle a is 116 degrees

Explanation:

ok so first we have to make everything equal to 180 because every triangle is 180 degrees so it would be written like this:

(14x + 4) + (5x - 1) + (2x + 9) = 180

Then, we solve for x and x equals 8

After this we plug 8 back into the angle so it would be written like this:

14(8) + 4

This equals 116 degrees.

User Rytisk
by
7.4k points

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