Question

A car travels 0.99 km distance in which each wheel makes 450 complete revolutions find the radius of its wheel​

Answer 1

Answer:

$when \: 450 \: wheel \: complete \: \\ distance = 0.99 \times 1000m \\ \\ when \: 1wheel \: complete \: \\ distance = 990 \div 450 \\ = 2.2m \\ now \\ 2\pi \times r = 2.2 \\ 2 \times \frac{22}{7} \times r = 2.2 \\ r = 0.35m \\ so \: radius \: 0.35m$

Answer 2

Step-by-step explanation:

2πR × 450=0.99km

2πR×450= 990m

πR= 99/90

πR = 1.1

R=1.1/π

R=0.35m