Question

what is the interior angle of a Pentagon and decagon​

Answer 1

Answer:

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Step-by-step explanation:

STEP 1: Find the sum of the interior angles of a pentagon

A pentagon has 5 sides.

Sum of the interior angles = ( n - 2) x 180

Sum of the interior angles = ( 5 - 2) x 180

Sum of the interior angles = 540°

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STEP 2: Find one interior angle:

one interior angle = 540 ÷ 5 = 108°

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STEP 3: Find the sum of interior angles of a decagon

A decagon has 10 sides

Sum of the interior angles = ( n - 2) x 180

Sum of the interior angles = ( 10 - 2) x 180

Sum of the interior angles = 1440°

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STEP 4: Find one interior angle:

one interior angle = 1440 ÷ 10 = 144°

Answer 2

Answer:

One interior angle of Pentagon = 108°

Sum of angles of Pentagon = 540°

One interior angle of Decagon = 144°

Sum of angles of Decagon = 1440°

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