Question

The diameter of a wheel is 1.4m. If the wheel rotates 10 times then how far will it travel?

Answer 1

Answer:

i tried to solve. hope it helped u buddy

Answer 2

GIVEN :-

• Diameter of Circle , d = 1.4 m.
• No. of rotation = 10.

TO FIND :-

• Distance to be travelled in 10 rotations.

SOLUTION :-

$\\ : \implies \displaystyle \sf \: Radius \: (r) = \frac{diameter}{2}$

$: \implies \displaystyle \sf \: Radius \: (r) = \frac{1.4}{2}$

$: \implies \underline{ \boxed{\displaystyle \sf \: Radius \: (r) =0.7 \: m.}}$

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$\\ \dashrightarrow \displaystyle \sf \:1 \: rotation = circumference \: of \: wheel.$

$\dashrightarrow \displaystyle \sf \:1 \: rotation = 2\pi r$

$\dashrightarrow \displaystyle \sf \:1 \: rotation = 2 \times \frac{22}{7} \times 0.7$

$\dashrightarrow \displaystyle \sf \:1 \: rotation = 22 \times 2 \times 0.1$

$\dashrightarrow \displaystyle \sf \:1 \: rotation = 44 \times 0.1$

$\dashrightarrow \underline{ \boxed{ \displaystyle \sf \:1 \: rotation = 4.4 \: m.}}$

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$\\ \longrightarrow \displaystyle \sf 10 \: rotation \: = 10 \times 4.4$

$\longrightarrow \underline{ \boxed{ \displaystyle \sf \: 10 \: rotation \: = 44 \: m.}}$

$\therefore \underline{ \displaystyle \sf \: Distance \: covered \: in \: 10 \: rounds \: is \: 44 \: m.}$