Question

What is the distance covered by an atheletic completing 2 rounds of a circular trac of radius 12 cm . By using circumstance of a circle . Pls answer this I am poor in physics

Answer 1

Answer:

150.72 metres

Explanation:

Given:

• Radius of the circle = 12 cm
• Number of rounds completed by the athlete = 2 rounds

To find:

• Distance covered by the athlete

Circumference of a circle = $2 \pi r$

Circumference of the circle = $2 \times 3.14 \times 12$

Circumference of the circle = $6.28 \times 12$

Circumference of the circle = $75.36 \ metres$

As two rounds were completed, this has to be doubled:

Distance covered = $2 \times 75.36$

Distance covered = 150.72 metres

The distance covered by the athlete is equal to 150.72 metres