Question

the radius of hemi circle is 2cm. what is the distance and displacement?​

Answer 1

Answer:

Distance: 6.28cm (approx.) Displacement: 2cm.

Explanation:

The distance will be half the circumference of the circle. The formula of circumference is 2πR. In this, the half and the two get cancelled, and we are left with πR. Here, R (the radius) is 2cm., and the value of π is approx.= 3.14. 3.14×2=6.28. So, the distance is approximately 6.28 cm.

The displacement is the radius itself, because it is the shortest length from start to end points, and the length between the two points is the radius. So, the displacement is 2.

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