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monitta
3 years ago
8

What is the sum of the interior angle measures of a polygon that has 11 sides?

Mathematics
1 answer:
tresset_1 [31]3 years ago
4 0

Answer:

Step-by-step explanation:

no of sides (n)=11

sum=(n-2)180

=(11-2)180

=9*180

=1620

therefore sum of the interior angles of a polygon having 11 sides id 1620°.

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Step-by-step explanation:

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prisoha [69]

Answer:

Please check the explanation.

Step-by-step explanation:

<u>Calculating the area of the outer rectangle:</u>

Given

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Thus,

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    =5x\cdot \:3x+5x\left(-1\right)+2\cdot \:3x+2\left(-1\right)

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<u>Calculating the area of the inner rectangle:</u>

Given

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  • The width of inner rectangle = w = x

Thus,

The area of the outer rectangle:

A = wl

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<u>Calculating the area of the shaded region:</u>

As

The area of the outer rectangle = 15x² + x - 2

The area of the inner rectangle = x² + 7

  • The area of the shaded region can be determined by subtracting the area of the inner rectangle from the area of the outer rectangle.

Thus,

shaded region Area = Outer Rectangle Area - Inner Rectangle Area

                                  = 15x² + x - 2 - (x² + 7)

                                   =  15x² + x - 2 - x² - 7

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Therefore, the Area of the shaded region is: 14x² + x - 9

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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