The answer is true. use arc length=(central angle/2π)2πr.
What is the length of the arc?
The distance along a portion of the circumference of any circle or curve is best characterized as arc length (arc).
We know that the circumference of a circle is equal to 2πr. That means when we have 2π radians out of 2π radians (one hundred per cent of the circle).
If we are only dealing with part of the circle (sector), you find what per cent of the complete circle the sector is by dividing the central angle by 2π. In this case, we have 3 radians out of 2π radians,
Therefore we only have 47.75% of the circle. Because we only have a certain percentage of the circle, you multiply 2πr by the percent to get the arc length given by the sector.
In this case 0.4775x2xπx5 which equals 15.001 which is rounded down to 15 cm. Therefore the answer is true.
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