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musiclover10045

The bottom line is a straight line that is equal to 180 degrees.

The three angles above it all need to add together to equal 180.

One angle is given as 20, so the other two need to add together to equal 160 ( 180-20 = 160)

Those two angles form the angle ACE so the answer would be 160 degrees,

Answer 160 degrees.

munequitarachel
(180- 90-20)
That’s equals 77 degrees but it’s larger than 90 degrees

You only minus
The bottom line 180 and the 20 degree angle

It will be 160 degrees

-Zayn Malik

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