Find the area of a circular sector with a radius of 4 cm if its central angle is 45 degrees.
| April 1, 2021 | education
The area of the sector is calculated by the formula S = п R² A / 360 °, where is the radius, A is the central angle of the sector;
S = 3.14 * 16 * 45 °: 360 ° = 6.28 (cm²);
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