3. Prove that the sum of the angles of a quadrilateral is 360°.

1.	3. Prove that the sum of the angles of a quadrilateral is 360°.
Answer» Answer: We know that the sum of the ANGLES of a triangle is 180°. ⇒ ∠A + ∠B + ∠C + ∠D = 360° [using (i) and (ii)]. Hence, the sum of all the FOUR angles of a quadrilateral is 360°. Step-by-step EXPLANATION: if the answer is correct, plz make me BRAINLIST..

Answer»

Answer:

We know that the sum of the ANGLES of a triangle is 180°. ⇒ ∠A + ∠B + ∠C + ∠D = 360° [using (i) and (ii)]. Hence, the sum of all the FOUR angles of a quadrilateral is 360°.

Step-by-step EXPLANATION:

if the answer is correct, plz make me BRAINLIST..

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3. Prove that the sum of the angles of a quadrilateral is 360°.​

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3. Prove that the sum of the angles of a quadrilateral is 360°.