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GB-26-04-001 · Sector area

OAB52.0 cm27.0°
Diagram not accurately drawn

A sector has radius 52 cm and angle 27°. Calculate its area to 1 decimal place.

Arcs and Sectors: Area of a Sector Booklet p. 38
Method
Use Area of a sector = (θ / 360°) × πr²
Worked Example (GB-26-04-001)
1)
27360π(52)2\frac{27}{360}\pi(52)^2
2)
637.1 cm²
Ans = 637.1 cm²