Question

Find the circumference and the area of a circle whose rediu is 8.4cm

Answer 1

Answer:

Step-by-step explanation:

Circumference=2×22/7×8.4

=52.8

Area=22/7×8.4×8.4

=221.76

Answer 2

Heyaaaa....

As, Radius = 8.4cm

Then,

Area = π $r^2$

so, area = 22/7 * 8.4 * 8.4

= 22 /7 * 70.56

= 22 * 10.08

= 221.76 $cm^2$

Now,

Circumference = 2 π r

= 2 * 22/7 *8.4

= 396.6 / 7

= 52.8 cm

Thanks..

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