Mathematics 4024 · O Level · Surface area and volume

Surface area and volume — practice question

Solid I takes the form of a cylinder with a smaller cylinder cut out from the middle.

(a(i))[4]

Calculate the value of $r$.

(a(ii))[4]

Which solid is the taller one, and by how much?

(b)[4]

Calculate the prism's total surface area.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply $\pi(r+3.5)^2-\pi r^2$” …