Question

If three angles of a quadrilateral are each equal to 75 degrees, then the fourth angle is what degrees.

Answer 1

Answer:

1 Answer. We know that, sum of all the 1 angles of a quadrilateral is 360°. Hence, the fourth angle of a quadrilateral is 120°.

Step-by-step explanation:

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Answer 2

Given : Three angles of a quadrilateral are each equal to 75 degrees

To find : The fourth angle of the quadrilateral.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the fourth angle of the quadrilateral)

Now, we know that :

Sum of four angles of a quadrilateral = 360°

So,

The fourth angle of the quadrilateral :

= Sum of four angles of a quadrilateral - (First angle of the quadrilateral + Second angle of the quadrilateral + Third angle of the quadrilateral)

= 360° - (75° + 75° + 75°)

= 360° - 225°

= 135°

(This will be considered as the final result.)

Hence, the fourth angle is 135°