Question

Q1 Find diameter of a circle whose circumference is
i. 242 cm ii. 356 cm iii. 808 cm​

Answer 1

Answer:

circumference = 2×pi×r

i.) 242 = 2× (22/7) × r

=> r = 38.5

Therefore diameter = 2r = 77 cm

ii.) r = (356/2) × (7/22) = 56.6363

diameter = 2r = 113.27 cm

iii.) r = (808/2) × (7/22) = 128.5454

diameter = 2r = 257.09 cm