A hollow sphere has a volume of k cm\(^3\) and a surface area of k cm\(^2\). Calculate the diameter of the sphere.
The diagram above shows a cone with the dimensions of its frustum indicated. Calculate the height of the cone.
The positions of two countries, P and Q, are (15ºN, 12ºE) and (65ºN, 12ºE) respectively. What is the difference in latitude?
A 120º sector of a circle of radius 21 cm is bent to form a cone. What is the base radius of the cone?
A cylindrical container, closed at both ends, has a radius of 7 cm and a height of 5 cm. Use this information to answer the questions below. What is the volume of the container?
