Question

The circumference of a circular park is 352m.find the area of park

Answer 1

$\huge{\textbf{\underline{As per Question:-}}}$

$\large{\textbf{Circumference of a circle = 352 m }}$

$\huge{\textbf{\underline{To find :-}}}$

$\large{\textbf{Area of park.}}$

$\huge{\textbf{\underline{Solution:-}}}$

Circumference of circle = $\textbf{ 2 \pi r }$

$352 = 2 \times \dfrac{22}{7}\times r$

$352 = \dfrac{44r}{7}$

$r = \dfrac{352\times 7}{44}$

$r = 56 m$

$\large{\textbf{\underline{ Area\: of \:circle = \pi r^2 }}}$

$Area = \dfrac{22}{7}\times 56 \times 56$

$Area = 22 \times 8 \times 56$

$\therefore \large{\textbf{ Area = 9856 cm^2 }}$

Answer 2

$\huge\tt{AnsweR}$

Given:

The circumference of a circular park is 352m.

Find:

Find the area of park.

AnsweR:

The circumference of circle.

2 πr

$\tt =>352 = 2 \times \frac{22}{7} \times r \\ \tt =>352 = \frac{44r}{7} \\ \tt =>r = \frac{352 \times 7}{44} \\ \tt =>r = 56m$

Area of circle

= πr²

Let a be area.

$\tt =>a = \frac{22}{7} \times 56 \times 56 \\ \tt =>a = 22 \times 8 \times 56 \\ \tt =>a = 9856 \: cm {}^{2}$