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Vika [28.1K]
3 years ago
6

Find the area and perimeter of the shaded region.

Mathematics
2 answers:
morpeh [17]3 years ago
6 0
Perimeter- 20
Area- 50-100
defon3 years ago
4 0

Answer:

Area: 50\pi -100

Perimeter: 20\pi

Step-by-step explanation:

If we take half of one of these "pedals" we can see that it is simply 1/4 of a circle with radius 5, subtracted by a triangle. Let's calculate this half-pedal.

1/4(25 \pi) - 1/2(5* 5)

That means 4 pedals is equal to:

8(1/4(25\pi) - 1/2 (25))

50\pi - 100

So.. The area of the shaded region is 50\pi -100

Perimeter is even simpler. the half-pedal is just 1/4 of the circumference of the circle. The circumference is just 10\pi, which means our half pedal is:

1/4(10\pi )

Multiplying by 8, our perimeter is just 20\pi.

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