Question

A semi-circle shaped rug has a diameter of 2 feet. What is the area of the rug?

Answer 1

Answer..
A of semi circle=πr2/2
A= 3.14/2
A= 1.57 ft sq.

We did in class

Answer 2

Answer:

$\frac{\pi }{2} \text{sq. unit}$

Step-by-step explanation:

Given: A semi circular rug of diameter 2 feet.

To find: Area of rug.

We know that area of circle$=\pi r^{2}$, where $r$ is radius of circle.

$r=\frac{\text{diameter}}{2}$

$r=1\text{feet}$

Area of semi circular rug$=\frac{\pi r^{2} }{2}$

                                        $=\frac{\pi (1^{2} )}{2} \\=\frac{\pi }{2} \text{sq. unit}$

Hence, area of the rug $\frac{\pi }{2} \text{sq. unit}$.

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