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Q: 3 of the angels of a quadrilateral mesure 80 100 and 55 which mesure is the fourth angle?

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360 minus the sum of the other three.

It is 360 degrees minus the sum of the other three angles.

Subtract the (sum of the other three angles) from 360.

If those are the angles of a quadrilateral then the 4th angle is 360-100-80-100 = 80 degrees

95 deg

Related questions

360 minus the sum of the other three.

The sum of the interior angles of a quadrilateral is 360 degrees so if 3 of them are right angles (90 °) the remaining fourth angle must also be 90 °. 360° - 3x90° = 90°

In a quadrilateral, three of the angles are obtuse. Which of the following could not be the angle measure of the fourth angle? 60° 90° 40° 20°

It is 100 degrees.

Yes. The fourth angle is 115 degrees.

Add up the three angles and subtract that from 360.

90 degrees

50 degrees (360 degrees in a quadrilateral)

Subtract 300 from 360.

The fourth exterior angle is 93 degrees so the fourth interior angle must be 87 degrees because there are 180 degrees on a straight line.

Subtract the (sum of the other three angles) from 360.

It is 360 degrees minus the sum of the other three angles.

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