Question

the measure of three angles of a quadrilateral is 30°, 70° and 100. find out the measurement of fourth angle. do as directed?Q.2​

Answer 1

Given :-

Measure of the first angle = 30°

Measure of the second angle = 70°

Measure of the third angle = 100°

To Find :-

The measure of the fourth angle.

Analysis :-

Add up all the three angles.

Subtract the sum we got from the total degree of a quadrilateral.

And the answer we get by subtracting is our fourth angle.

Solution :-

We know that,

Sum of a quadrilateral = 360°

Making an equation,

360 - (30 + 70 + 100)

360 - 200

= 160°

Therefore, the fourth angle is 160°.