Question

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Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Area of parallelogram is equal to the product of base and height, the area is the product of $\pi r$ and r, or $\pi r^{2}$.

Step-by-step explanation:

We are finding the area of a circle by an alternative method.

What we do is split the circle into multiple sectors and then arrange them in the form of a parallelogram and find the area of this parallelogram.

Area of parallelogram = base$\times height$

Hence area is the product of base and height.

Base = $\pi r$

Height = r

Area is the product of $\pi r$ and r = $\pi r^{2}$