Question

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 umbrella .

Answer 1

For answer,See the pic attached to it.I hope it will help you in your examinations.Thanks

Answer 2

Answer:

⇒ Area between the two consecutive ribs of umbrella = 794.81 cm²

Step-by-step explanation:

Radius of the circle = 45 cm

The number of ribs in the umbrella = 8

Measure of one complete angle = 360

Area formed by one rib = 360/8

                                        = 45°

So, Area between the two consecutive ribs of umbrella = Area of one sector

⇒ Area between the two consecutive ribs of umbrella = 45/360 × π × radius²

⇒ Area = 794.81 cm²