Question

the angles of a quadrilateral are 110,55&72​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

We know that:

The sum of the angles of a quadrilateral = 360°

We have: 3 of its angles = 110°, 55° and 72°

Let the 4th angle be x.

∴ 110° + 55° + 72° + x = 360°

⇒ 237° + x = 360°

⇒ x = 360° - 237°

⇒ x = 123°

Hence, the fourth angle is 123°.

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