Find in degrees the angle subtended at the centre of a circle of diameter 50cm by an arc of length 11cm.

Explanation

To find the angle subtended at the center of a circle of diameter 50 cm by an arc of length 11 cm, we can follow these steps:

### Step 1: Find the radius of the circle
The radius \( r \) of the circle is half of the diameter.

\[ r = \frac{\text{diameter}}{2} = \frac{50 \text{ cm}}{2} = 25 \text{ cm} \]
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