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3 years ago

What is the measure of angle A?

Mathematics

1 answer:

Marysya12 [62]3 years ago

8 0

Answer:

The measure of A is 30

Step-by-step explanation:

In order to find the value of A, we first need to find x. We can do this by measuring all the interior angles and setting equal to 180. Since 8x + 4 is vertical with the interior angle, we know that it is the same. Also since 130 creates a supplement with the interior angle, we know that the interior angle is equal to 50.

3x - 6 + 8x + 4 + 50 = 180

11x + 48 = 180

11x = 132

x = 12

Now that we have x, we can find A.

A = 3x - 6

A = 3(12) - 6

A = 36 - 6

A = 30

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