Question

taking pi as 3.14 find the circumference for the circles whose radius is 10 cm,5cm,20cm,25cm,

Answer 1

Hello mate here is your answer

well taking π as 3.14 we had to find the

circumference of circles having following radius

1. 10cm
2. 5 cm
3. 20 cm
4. 25 cm

I ) circumference = 2πr = 2× 3.14 × 10

= 2× 314/ 100 × 10

= 2× 314/10

628/10

= 62.8 cm

II) 2πr = 2×3.14×5

2×314/100×5

2×314\20

314/10

31.4cm

III) 2πr= 2×3.14×20

2×314/100×20

2×314/10×2

4× 314/10

1256/10

125.6cm

IV) 2πr = 2×3.14×25

2×314/100×25

2×314/4

314/2

157cm

I don't know if it is correct

But I hope it helps you