Question

Please Help me by solving this Doubt !!​

Answer 1

Answer:

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Answer 2

Pre-Required Knowledge:

Sum of angles of a quadrilateral = 360°

Given:

angles 75° and 125°; Unknown angles are equal

Solution:

Let the third angle be x°

Then the fourth angle is also be x° because the unknown angles are given to be equal.

⇒ 75° + 125° + x + x = 360°

⇒ 200° + 2x = 360°

⇒ 2x = 160°

⇒ x = 80°