Question

Find The Circumference Of A Circle Whose

(a) Radius : 48m

(b) Diameter : 90cm​

Answer 1

Answer:

circumstance of circle = 2×pi×r

so,

(i) 2×22/7×48 ( here radius is 48m)

= 301.71 (approx)

(ii) 2×22/7×45

= 282.85(approx) (here radius is 45cm)

hope it helps.

Answer 2

$\huge\mathfrak\red{Answer}$

RADIUS = 48m

$2 \: \pi \: r \\ = 2 \times \frac{22}{7} \times 48m \\ = \frac{2112}{7} = 301.7m$

DIAMETER = 90cm

RADIUS = 90cm ÷ 2 = 45cm

$2 \: \pi \: r \\ 2 \times \frac{22}{7} \times 45cm \\ \frac{1980}{7} = 282.8cm$

HOPE THIS HELPS YOU!