What is the value of y, and quick explanation please!

asked Feb 27, 2018 128k views

3 votes

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3 votes

think its B. because its a right angle and right angles are 90 degrees

Kefka answered Feb 28, 2018

by Kefka

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the total degree value of a triangle is 180.

so 40+y+30+y=180
then solve for y =55
so the answer is b

Robert Conn answered Mar 4, 2018

7.1k points

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