Question

three angle of a quadrilateral are equal. if the forth angle is 240degree, find the magnitude of each of the equal angel​

Answer 1

Answer:

The measure of equal angle = 40°

Step-by-step explanation:

Let the measure of equal angle be 'x'

So, there sum equals to 3x

And sum of measure of all angles of quadrilateral is 360°

So , we have

3x + 240° = 360°

or, 3x = 120°

or, x = 40°

The measure of x or equal angles is 40°

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