CDS | Elementary Mathematics | 2-D Mensuration

From a rectangular sheet of sides 18 cm and 14 cm, a semi-circular portion with smaller side as diameter is taken out. Then the area of the remaining sheet will be

The diameter of a wheel that makes 452 revolutions to move 2 km and 26 decametres is equal to:

There are 437 fruit plants in an orchard planted in rows. The distance between any two adjacent rows is 2 m and the distance between any two adjacent plants is 2 m. Each row has the same number of plants. There is 1 m clearance on all sides of the orchard. What is the cost of fencing the area at the rate of ₹100 per metre?

A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the radius of the wheel is 30 cm, the speed of the cycle is:

From a circular piece of cardboard of radius 3 cm, two sectors of 40° each have been out off. The area of the remaining portion is