42.43 (2 dec places)
What is the length of the longest line that can be drawn in a 20x12x9 box?
Please explain your working?
A unit sphere (radius = 1) is out on a flat plane in the rain. Find the side length of the largest cube that can hide underneath it and not get wet.
A hemispherical is made of steel, 0.25cm thick. The inner radius of the bowl is 5 cm. find the outer curved surface area of the bowl and also find the total surface area and volume.
A string is wound symmetrically around a circular rod. The string goes exactly 4 times around the rod. The rod has a circumference of 4 and a length of 12. What is the length of the string?
