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brilliants [131]
2 years ago
8

The radius of the front wheel of Paul's bike is 63cm. Paul goes for a cycle and travels 69.89km. How many full revolutions did P

aul's front wheel complete?
Mathematics
1 answer:
Rudiy272 years ago
7 0

Answer: 17,649

Step-by-step explanation:

Given

The radius of the cycle is r=63\ cm

Distance traveled by Paul is 68.89\ km

Distance traveled by one complete revolution of wheel is equivalent to circumference of wheel i.e.

\Rightarrow 2\pi r\\\\\Rightarrow 2\times \dfrac{22}{7}\times 63\\\\\Rightarrow 396\ cm\ \text{or}\ \text{3.96}\ m

No of revolution made by wheel

\Rightarrow n=\dfrac{69.89\times 1000}{3.96}\\\\\Rightarrow n=17,648.9899\approx 17,649

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24ft²

Step-by-step explanation:

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0.5*8.95*4 = 17.9ft²

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12-8.95=3.05ft

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0.5*3.05*4 = 6.1ft²

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3 years ago
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MariettaO [177]
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2 years ago
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