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3 years ago

A quadrilateral has angles that measure 101°, 133°, and 76°. What is the measure of the fourth angle?

2 answers:

7 0

<span>Quadrilateral has to equal 360 degrees.

So simply subtract.

360 - 101 - 133 - 76 equals... 50

Then you can add to see if they all equal 360.

</span>101 + 133 + 76 + 50 = 360
<span>
So the answer is 50.

Hope this helps. c:

</span>

hjlf3 years ago

7 0

The sum of angles in a quadrilateral = 360 degrees.

Let the fourth angle be y

101 + 133 + 76 + y = 360

310 + y = 360

y = 360 - 310

y =50

Therefore the fourth angle is 50°

Hope this explains it.

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