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Rashid [163]
3 years ago
10

Find the area of a regular polygon

Mathematics
1 answer:
Dimas [21]3 years ago
4 0

Answer:

(N-2)x180=sum of interior angles

So (5-2)x180=540

Divided by number of sides=540/4=108... then each angle is 108 divide to triangles ..so they will have 2 angles =54 2 sides =4 the last angle =72 ."of the triangle " area of triangle =1/2xsxsxsin(side in

between)

So 1/2x4x4xsin(72)= then multiply it by 5 as u will have 5 triangles .. so it will be 190.2(probably i tried)

Step-by-step explanation:

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Tatiana [17]

Answer:

Sorry :( I would help but I'm not very good at this type of math =c

Step-by-step explanation:

I hope someone will see this :D

3 0
3 years ago
4-inch by 6-inch what is the width of 15 inches for a ratio table
quester [9]

This is a ratio problem; the ratio of the length to width is constant (and therefore equal):

4 /6 = 15 / x

Now, with a ratio, we may do any allowable algebra operation: cross-multiply, invert both sides, multiply or divide both sides by the same amount, etc.

Let's cross-multiply:

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x = 90/4

x = 22.5 in.

3 0
3 years ago
3a-28-7a+10a <br><br> Someone PLEASE HELP
tiny-mole [99]

Answer:

6a - 28

Step-by-step explanation:

combine like terms

3a - 28 - 7a + 10a

3a - 7a + 10a = 6a

have a lovely day :)

8 0
2 years ago
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Damm [24]
-4 I believe I’m not sure tho
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3 years ago
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What methods could you use to calculate the x-coordinate of the midpoint of a horizontal segment with the endpoints of (-20, 0)
Ronch [10]
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4 years ago
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