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Need Help ASAP What is the sum of interior angles of a triangle?Degrees Given ABC, find the value of X. What is the measure of angle A??
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Need Help ASAP

What is the sum of interior angles of a triangle?Degrees

Given ABC, find the value of X.

What is the measure of angle A??

Need Help ASAP What is the sum of interior angles of a triangle?Degrees Given ABC-example-1
User Soren Johnson
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1 Answer

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The sum of the interior angles of a triangle is 180 degrees

2x-9+3x+x+3=180
6x-6=180
6x=186
x=31

A=2(31)-9
A=62-9
A=53
User Takje
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