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2 years ago

Help doing test

Mathematics

1 answer:

Sphinxa [80]2 years ago

4 0

Step-by-step explanation:

2x^2+3x=20

5x^2=20

x^2=4

$\times = \sqrt{4}$

x=2

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10 months ago

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For a polygon with 10 sides, which equation below represents the sum of the interior angles in the polygon?

jekas [21]

The sum of the interior angles in the polygon whose side is 10 is $1440^{0}$

<h3>What is sum of interior angle of polygon ?</h3>

The sum of the interior angles in a regular polygon is given by the formula 180(n – 2), where n is the number of sides in the polygon.

As, The formula for calculating the sum of interior angles is ( n − 2 ) × $180^{0}$

S0, n=10

Then, sum of interior angle be = (n-2) x 180

= (10-2) x 180

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Thus, the sum of the interior angles in the polygon is $1440^{0}$

Learn more sum of interior angle of polygon here:

brainly.com/question/22408868?

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