Question

find the area of a circle whose circumference is 132
cm

Answer 1

Step-by-step explanation:

here's ur answer like it

Answer 2

Given,

the circumference of the circle = 132 cm.

To Find,

the area of the circle.

Solution,

the circumference of the circle =2 x π x r

                                            132 = 2 x $\frac{22}{7}$ x r

                                             $\frac{132}{2}$ = $\frac{22}{7}$ x r

                                               $\frac{66}{22}$ = $\frac{1}{7} (r)$

                                          3 x 7 =r

                                               21=r

So, the radius of the circle is 21 cm.

now,

area of the circle = π $r^{2}$

                            = $\frac{22}{7}$×21×21

                            =1386 $cm^{2}$

Hence the area of the circle is 1386 $cm^{2}$ .