Question

The diameter of a wheel is $1.4m$, find its circumference.

Answer 1

b'radius=diameter/2

radius of a wheel=1.4/2

=0.7

$\begin{array}{c}circumference=2\pi r=2\left(\frac{22}{7}\right)\left(0.7\right)\\ =4.4m\end{array}$

Thus circumference is 4.4m

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