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39 votes
39 votes
Find the value of the variables, giving brief reasons for your answer:​

Find the value of the variables, giving brief reasons for your answer:​-example-1
User Mohamed Anser Ali
by
2.8k points

1 Answer

13 votes
13 votes

Answer:

a = 70°

b = 80°

Explanation:

Angles on a straight line add up to 180°

⇒ a + 110 = 180

⇒ a = 180 - 110

⇒ a = 70°

The sum of the interior angles of a quadrilateral is 360°

⇒ a + b + 130 + 80 = 360

⇒ 70 + b + 130 + 80 = 360

⇒ b + 280 = 360

⇒ b = 360 - 280

⇒ b = 80°

User Damonholden
by
2.8k points
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