Points A, B and C lie on a circle with centre O. The diagram presents triangle ABC inside the circle, and the angle at B is shown with a right-angle marker. A straight line from A to C goes through O.
(a(i))[1]
Draw a chord on the diagram.
(a(ii))[1]
Explain why angle $ABC$ is $90^\circ$.
(b)[2]
Calculate the surface area of this cube.
(c(i))[3]
Calculate the volume of this cuboid.
Give the units for your answer.
(c(ii))[3]
On the $1\text{ cm}^2$ grid, draw a precise net for this cuboid.
A face has already been drawn for you.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Chord drawn correctly” …