Find the circumference of circle whose diameteristi) 7.5 cm (ii) 5.6cm

1.	Find the circumference of circle whose diameteristi) 7.5 cm (ii) 5.6cm u) 4.9 cmNote : take Ď in the above two questions.(d)49cm
Answer» Circumference of circle = 2pir 1) r = diameter/2 = 17.5/2 Circumference = 222/717.5/2 = 222.5 = 55 cm 2) r = diameter/2 = 4.9/2 Circumference = 222/74.9/2 = 22.7= 15.4 cm

Find the circumference of circle whose diameteristi) 7.5 cm (ii) 5.6cm u) 4.9 cmNote : take Ď in the above two questions.(d)49cm

Answer»

Circumference of circle = 2*pi*r

1) r = diameter/2 = 17.5/2 Circumference = 2*22/7*17.5/2 = 22*2.5 = 55 cm

2) r = diameter/2 = 4.9/2 Circumference = 2*22/7*4.9/2 = 22*.7= 15.4 cm