Question

Find out the area and circumference of a circle of a diameter 50 cm.

Answer 1

$\sf \huge{Given:-}$

$\sf \:Diameter = 50cm$

$\sf \huge{To \: Find:-}$

$\sf \: Area \: and \: Circumference \: of \: circle$

$\sf \huge{Solution:-}$

$\sf Radius = \frac{d}{2} \\ \sf \implies \frac{50}{2} = 25cm$

$\sf \: Area = π r2 \\ \sf \: \implies \frac{22}{7} \times {25}^{2} \\ \sf \: \implies \: 1962.5cm$

$\sf \: Circumference = 2\pi r \\ \sf \implies \: 2 \times \frac{22}{7} \times 25 \\ \sf \implies \: \frac{44}{7} \times 25 \\ \sf \implies \: 157.25cm$

Answer 2

$\huge\underline{\bf \orange{AnSweR :}}$

Radius= d/2

⟹ 50/2 =25cm

Area= π r2

⟹ 22/7 ×25/2

⟹ 1962.5cm

Circumference= 2πr

⟹ 2× 22/7 ×25

⟹ 44/7 ×25

⟹ 157.25cm Ans.