1.

A quadrilateral has three acute angles,each measuring 80 degree. What is the measure of the fourth angle...plzz solve with a diagram​

Answer»

Answer:

120°

Given:

A Quadrilateral ABCD has THREE acute angles measuring 80°

To find:

The FOURTH ANGLE

SOLUTION:-

Let the fourth angle be x

As we know that

Sum of all the angles of a quadrilateral is 360°

Then,

240°+

------------

The measure of the fourth angle is 120°



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