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astra-53 [7]
3 years ago
10

A parallelogram has an interior angle measuring 81°. Which MUST also be the measure of an interior angle of the parallelogram?

Mathematics
1 answer:
luda_lava [24]3 years ago
4 0
99º, because the sum of all 4 of the interior angles of the parallelogram must be 360º. We know that if one angle measures 81º the other angle on the opposite side must measure 81º.. so 81+81=162
360-162=198
198 - 2(number of remaining angles) = 99º
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4 years ago
The perimeter of a rectangle whose sides are of lengths (4m+7) units and (3m+2) units
34kurt

Answer:

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Step-by-step explanation:

<u>We know that:</u>

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<u>Solution:</u>

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3 years ago
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Answer:

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Step-by-step explanation:

Formula

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