Question

3. Sum of angles in a triangle and in a quadrilateral.​

Answer 1

Answer:

The sum of the measures of the interior angles of any quadrilateral can be found by breaking the quadrilateral into two triangles. Since the measure of the interior angles of any triangle equals 180 degrees, each of the two triangles will contribute 180 degrees to the total for the quadrilateral.

Step-by-step explanation:

Answer 2

Answer:

for triangle 180° and for quadrilateral 360°

Step-by-step explanation:

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