Question

calculate the length of an arc with subtend the Circle of 60 degree at the centre of a circle of radius 1/2 metre ​

Answer 1

2.612 m

Explanation:

circumference = (3.14)(0.5)(2) = 3.14 m

subtend mean to opposite part of 60°, so we're looking for a 360-60 = 300° segment.

so 5/6(3.14) = 2.612 m