Note AcademyNote Academy

Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 15 · Question 7

9709

As printed in the paper

The question as text

r cm h cm A manufacturer wishes to design an open cylindrical tank, as shown in the diagram. The tank will have a base but no top. The outside of the tank will have a fixed surface area of 600r cm2. The radius r cm and height h cm of the tank can vary. 3

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme
  • 7(a)[3]

  • 7(b)[3]

  • 7(c)[2]

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.