3 years ago

What is the Measurement of angle A?

Mathematics

1 answer:

IRINA_888 [86]3 years ago

5 0

Answer:

A = 60

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

119 = 3y+14 + 4y

Combine like terms

119 = 7y+14

Subtract 14 from each side

119-14 = 7y+14-14

105 = 7y

Divide each side by 7

105/7 = 7y/7

15 = y

We want to find Angle A

A = 4y

A = 4*15

A = 60

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