Question

What angle in radians is subtended by an arc of 1.60 mm in length on the circumference of a circle of radius 2.54 mm

Answer 1

α = 0.63 radians

Explanation:

We are given;

Length of arc; L = 1.6 mm

Radius; r = 2.54 mm

The arc length equation is given by;

L = αr

Where;

L is length of arc

r is radius

α is angle in radians

Thus;

α = L/r

α = 1.6/2.54

α = 0.63 radians