Question

Calculate (a) the cercumference of a circle of radius 3.5cm and calculate (b) area of a circle of radius 4.65 CM

Answer 1

Answer:

(a) 22 cm (b) 67.93 cm

Explanation:

(a) Circumference= 2$\pi$r

=> 2 x $\frac{22}{7}$ x 3.5

=> 2 x 11 = 22 cm

(b) Area= $\pi$ $r^{2}$

=> 3.14 x $4.65^{2}$

= 67.93 cm

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