Question

what is the distance covered by A wheel of diameter 2 metres 80 CM when it is rotated 12 times on the road​

Answer 1

Answer:

105.6 m

Step-by-step explanation:

Diameter = 2 m 80 cm = 2.8 m

Distance covered in one rotation = Circumference of wheel

Circumference = πd

= $\frac{22}{7}$ X 2.8

= 8.8 m

Distance covered in 12 rotations = 8.8 X 12 = 105.6 m

Answer 2

Given that : Diameter = 2 metres 80 cm

=> Diameter = 200 + 80 = 280cm

=> Radius = Diameter/2 = 280/2 = 140 cm

Now, According to the question :

Distance = 12 × Circumference of Circle (wheel)

=> Distance = 12×2πr

$= > 12 \times 2 \times \frac{22}{7} \times 140 = 1</strong><strong>0</strong><strong>5</strong><strong>6</strong><strong>0</strong><strong>$

Distance = 10560 cm