Complete the table below:Sr. No.Radius (r)Diameter(d)Circumference (c)

Complete the table below:Sr. No.Radius (r)Diameter(d)Circumference (c)i.7 cmii.25 cmiii.616 cmiv.72.6 cm

Answer»

i. Radius (r) = 7 cm

Diameter (d) = 2r

= 2 x 7 = 14 cm

Circumference (c) = πd

= 22/7 x 14

= 44 cm

ii. Diameter (d) = 28 cm

Radius (r) = d/2 = 28/2 = 14 cm

Circumference (c) = πd

= 22/7 x 28

= 88 cm

iii. Circumference (c) = 616 cm

∴ πd = 616

∴ 22/7 x d = 616

∴ d = 616 x 7/22

∴ d = 196 cm

∴ Diameter (d) = 196 cm

Radius (r) = d/2 = 196/2 = 98 cm

iv. Circumference (c) = 72.6 cm

∴ πd = 72.6

∴ 22/7 x d = 72.6

∴ d = 72.6 x 7/22

= 726/10 x 7/22

= (33 x 7)/10

∴ d = 23.1 cm

∴ Diameter (d) = 23.1 cm

Radius (r) = d/2 = 23.1/2

= 11.55 cm

Sr. No.	Radius (r)	Diameter(d)	Circumference (c)
i.	7 cm	14 cm	44 cm
ii.	14 cm	25 cm	88 cm
iii.	98 cm	196 cm	616 cm
iv.	11.55 cm	23.1 cm	72.6 cm

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