An umbrella has 8 ribs which are equally spaced Assuming umbrella to be a flat circle of radius 45 cm, find the area between the two consecutive ribs of the umbrella.

Radius = 45 cm
There are total 8 sectors.
Therefore, the angle of each sector= 360°/8 = 45°
The area between the two consecutive ribs = Area of sector
= 45°/360° × πr² = 1/8 × π(45)²
= 1/8 × 22/7 × 45 × 45 = 22275/28 cm²

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