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Please help it’s about exterior angles

Please help it’s about exterior angles-example-1
User Jessenia
by
8.1k points

1 Answer

1 vote

Answer:

x = 12 , -2

Explanation:

For the first Question ,

we Know that by VOA , The angles are equal to 40*
and by being a linear pair , we get 180 - 110 = 70*

By exterior angle property , 40 + 70 = 9x - 2

= 110 = 9x - 2

9x = 108

x = 108/9 = 12



For the second question ,

By VOA , we know that the interior angles of the triangle are x+74 , 37 + x and 73


By Angle - sum Property , x+ 74 + 37 + x + 73 = 180

2x + 184 = 180
2x = 180 - 184
2x = -4 , so x = -2

User Debacle
by
8.7k points

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