Question

Out of the three equal angles of a quadrilateral ,each measures 70 degree. The measure of the fourth angle is.

Answer 1

Answer:

some of the three angles of quadrilateral is 360 degrees

some of the three angles of a quadrilateral in the given problem 210 degrees

4th angle is 360 - 210 = 150 degree

Answer 2

Given: Each of the three angles of a quadrilateral = 70°.

To find: The measure of the fourth angle

Solution: We know that the sum of all the interior angles in a quadrilateral is equal to 360°.

Now let the fourth angle be x.

According to the question,

70° + 70° + 70° + x = 360°

⇒ 210° + x = 360°

⇒ x = 360° - 210°

⇒ x = 150°

Therefore, the measure of the fourth angle is 150°.

Answer: 150°