Q.1.
Circle A has a radius of 10 cm and a circumference of 63 cm. If it is cut into two equal sized semicircles, what is the circumference of one of those semicircles?
Q.2.
A cube has a height of 2 cm. What is its volume?
Q.3.
What is the area of a circle whose diameter = 20 cm (take pi to be 3.142)?
Q.4.
What do we call the longest side of a right-angled triangle?
Q.5.
Circle A has an area of 64 cm . Circle B has a radius a quarter the size of Circle A’s radius. What is the area of circle B?
Q.6.
A right-angle triangle has a base of 16 cm and a height of 12 cm. What is its area?
Q.7.
Square A has an area of 25 cm . Square B is twice as wide as square A. What is the area of square B?
Q.8.
A regular decagon has sides measuring 7 cm each. What is its perimeter?
Q.9.
A cuboid has a height of 5 cm. What is its surface area?
Q.10.
The height of a cube is 4 cm. What is its total surface area?