Question

If circumference of a circle is 220 cm, find its area

Answer 1

Answer:

3846.5 cm²

Step-by-step explanation:

circumference = 2πr = 220 cm

Finding radius:

2 * 3.14 * r = 220

r = 220 / 2 * 3.14

r = 35 cm (approx)

area of circle = πr²

= 3.14 * 35 * 35

= 3846.5 cm²

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Answer 2

Answer:

Area of Circle = 3850 cm²

Step-by-step explanation:

Circumference of a Circle = 220 cm

Area of circle = ?

Firstly we find radius using circumference

Circumference of a Circle = 220 cm

                                   2 $\pi$r = 220 cm

                            $2*\frac{22}{7} *r=220$

                                        $r= \frac{220*7}{22*2}$

                                        $r = 5*7$

                                        r = 35 cm

Area of Circle = πr²

                       = 22/7 * 35 * 35

                       = 22 * 35 *5

                       = 3850 cm²

Ans.