Math, asked by jazibjalil, 5 months ago

the radius of the circle is 21 cm,find
a) circumference of the circle
b) area of the circle (pi=22/7)​

Answers

Answered by AbdulHafeezAhmed
5

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Answered by rushnamalik
4

Answer:

radius= 21cm

a) circumference = 2πr = 2×22/7 ×21 = 132cm

b) area = πr² = 22/7 × 21 ×21 = 1386 cm²

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