Question

Find the number of revolutions a wheel will
make to cover a distance of 66 m if the diameter
of the wheel is 70 cm.​

Answer 1

Answer:

30 revolutions

Step-by-step explanation:

We have, Diameter (d)= 70cm.

$radius (r) = \frac{70}{2} cm = 35cm \\ circumference \: = 2\pi \: r \\ = (2 \times \frac{22}{7} \times 35) cm = 220cm.$

So , the wheel can go 220cm in 1 revolution

Therefore, The wheel can go 6600cm in

$\frac{6600}{220} revolutions$

i.e. 30 revolutions.

Answer 2

Answer:

diametre=70cm

radius=d/2=35cm

circumfurence of wheel=2πr

2×22/7×35=220cm

=2.2m

so,total revolutions=66m/2.2m=30

Therefore revolutions can be made is 30