Mathematics
A round table cover has six equal designs as shown in Fig. below. If the radius of the cover is 28 cm, find the cost of making the designs at the rate of ₹ 0.35 per cm<sup>2</sup>. (Use = 1.7)
Related Questions
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.
A car has two wipers which do not overlap. Each wiper has a blade of length 25 cm sweeping through an angle of 115°. Find the total area cleaned at each sweep of the blades.
To warn ships for underwater rocks, a lighthouse spreads a red coloured light over a sector of angle 80° to a distance of 16.5 km. Find the area of the sea over which the ships are warned.
(Use π = 3.14)