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3 years ago

10

How do I do this ? I don't know how to find the midpoint in this problem

1 answer:

finlep [7]3 years ago

5 0

If point A is the midpoint then that means line segments XA and AY are equivalent so you can set:
3x=5x-6
(now you solve for x)
2x=6
(divide by 2 on both sides)
x=3

So BASICALLY,
XA= 3x= 3(3) = 9
AY= 5x-6= 5(3)-6 =9
So now you know the length of both sides, add those together and you get
XY=18

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blagie [28]

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Step-by-step explanation:

we know that

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step 1

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we have

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substitute

$A=\pi (5)^{2}$

$A=25\pi\ ft^{2}$

step 2

Find the area of the sector

we know that

The area of the circle subtends a central angle of 360 degrees

so

by proportion find out the area of a sector by a central angle of 72 degrees

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step 3

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step 4

Find the area of the shaded region

Subtract the area of the triangle from the area of the sector

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