Question

4.How many times a wheel of radius 35 cm must rotate to go 440 m
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Answer 1

Answer:

Hi

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The answer of your question is given below

Step-by-step explanation:

20 rotation

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Answer 2

GiveN :-

• Radius of wheel = 35 cm

• Distance = 440 m = 44000 cm

To FinD :-

• Rotations of the wheel in travelling of 440 m

SolutioN :-

$:\implies \boxed{ \bf Circumference \: of \: circle =2 \pi r}$

$:\implies \sf 2 \times \frac{22}{7} \times35 \\ \\:\implies \sf 2 \times 22 \times 5 \: \: \: \\ \\ :\implies \sf220 \: cm$

$\longrightarrow \boxed{ \sf Rotations = \frac{Distance}{Circumference} }\\ \\\longrightarrow \sf Rotations = \frac{44000}{220} \\ \\\longrightarrow \sf Rotations =200$