Question

7. Radius of a circle is 14 cm, then its area is a) 44 cm b) 196 cm? c) 616 cm2 d) 4312 cm2
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Answer 1

Answer:

616cm²

Step-by-step explanation:

$a = \pi \: {r}^{2}$

$a = \pi \: {(14)}^{2}$

$a = 196\pi \: {cm}^{2}$

$a = 615.752160 or \: 616cm$

Answer 2

Answer:

The area of a circle is 616 cm 2.Find its circumference

Step-by-step explanation:

Given,

πr  

2

=616

r  

2

=  

22

616×7

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r  

2

=28×7

r=14

Therefore, Circumference = 2πr=2×  

7

22

​

×14=88 cm

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