Mathematics 0580 · IGCSE · Surface area and volume
Surface area and volume — practice question
The diagram depicts a prism whose length is 18 cm and whose volume is $253.8\,\text{cm}^3$. Its cross-section is a right-angled triangle with a base of 6 cm and a height of $h$ cm.
(a(i))[3]
Show that $h$ is 4.7.
(a(ii))[2]
Calculate $x$.
(b)[6]
Calculate the prism’s total surface area.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Area of triangle $=\frac{1}{2}\times6\times h$” …