Question

C = 2πr
a) find the value of C when π = 3.142 and r =5

A = πr²
b) find the value of A when π = 3.142 and r = 5​

Answer 1

Step-by-step explanation:

a).

C=2πr

C=2×3.142×5

= 31.42

b).

A=πr2

A=3.142×5×5

= 78.55

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