Math, asked by rakshanapandla, 1 year ago

A bicycle has a diameter 75cm.
a) calculate the length of its circumference to one decimal place.
b) How many times will the wheel rotate if a girl rides the bicycle for 1km?
Give your answer to the nearest whole number.

Answers

Answered by Anonymous

a) 235.7cm (c=πd)
b) 424 rotations (rotations= distance/circumference)

Answered by danishjoshi111

Diameter = 75 Cm ∴Radius = 75/2Cm
Circumference of circle = 2πr
=2×22/7×75/2
= 235.5Cm

Rotation In 235.5 Cm = 1
Rotations in 1 km = 100000/235.5 {1km = 100000Cm}
= 424 Rotations

danishjoshi111: Hope it helped . Plz mark it as brainliest ..

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A bicycle has a diameter 75cm. a) calculate the length of its circumference to one decimal place. b) How many times will the wheel rotate if a girl rides the bicycle for 1km? Give your answer to the nearest whole number.

Answers

A bicycle has a diameter 75cm.
a) calculate the length of its circumference to one decimal place.
b) How many times will the wheel rotate if a girl rides the bicycle for 1km?
Give your answer to the nearest whole number.