The dimensions of water tank are 13cm, 10cm and 70cm. If it is half-filled with water, calculate the volume of water in litres

If the total surface area of a solid hemisphere is equal to its volume, find the radius

Which of the following is true about parallelogram?

Calculate the gradient (slope) of the joining points (-1, 1) and (2, -2)

If P(2,3) and Q)2, 5) are points on a graph, calculate the length PQ