In a circle with radius 2.1, an angle intercepts an arc of length 21.2. Find the angle in radians to the nearest 10th.

Given:

Radius of a circle = 2.1 units

Arc length = 21.2 units

To find:

The central angle in radians to the nearest 10th.

Solution:

We know that the intercepted arc length is

Where, s is the arc length, r is the radius and is the central angle in radians.

Putting the given values, we get

Therefore, the angle in radians is 10.1.

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step-by-step explanation:

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