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Anuta_ua [19.1K]
3 years ago
5

Please may someone help me with these two questions I'm struggling with above.​

Mathematics
1 answer:
34kurt3 years ago
5 0

Answer:

Perimeter = 21 units

Volume = 110 cubic units

Step-by-step explanation:

Let the center of circle be (x,y).

(x+2)^{2} +(y-7)^{2} = (x)^{2}+(y+2)^{2}

4x - 18y = - 45

(x)^{2}+(y+2)^{2}=(x-2)^{2}+(y-2)^{2}

4x + 8y = 4

x + 2y = 1

Solving these 2 equations,

4 - 26y = -45

y = \frac{49}{26}

x = \frac{-36}{13}

radius = 3.35

Perimeter = 2\pi r = 21 units

Volume of cylinder = \pi r^{2} h

We have to add the volumes of the cylinders.

Volume of smaller cylinder = \pi \times 2^{2} \times 2 = 8\pi

Volume of larger cylinder = 27 \pi

Total volume = 35\pi = 110 cubic feet

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