Question

circumference of circle is 88 cm find its radius and area

Answer 1

circumference=2πr
88=2×22/7r
88×7/44=r
2×7=r
14cm=radius
area=πr²
area=22/7×(14)²
area=22/7×196
area=616cm²

Answer 2

The radius and area are 14 cm. and 615.75 cm² respectively.

• A circle's perimeter is denoted as its circumference. A circle's circumference is calculated by multiplying its diameter by the constant that is $\pi$.
• A circle is a closed, rounded shape whose border points are all equally spaced apart from the centre. The diameter and the area of a circle are the two very crucial measurements of a circle.

Here, according to the given information, it is given that,

Circumference of the circle = 88 cm.

Then, we know that,

Circumference of the circle = $2\pi r$.

Now, putting the values, we get,

$2\pi r$ = 88.

Or, $r = \frac{88}{2\pi }=14$ cm.

Also, we know that, the area of the circle = $\pi r^{2} = \pi (14)^{2} = 615.75$ cm².

Hence, the radius and area are 14 cm. and 615.75 cm² respectively.

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