(a(i))[2]
Calculate the area of the pentagon.
(a(ii))[3]
Determine the perimeter of the pentagon.
(b)[3]
A sphere’s volume is $\frac{4}{3}\pi r^3$. A sphere has a volume of $2572\text{ cm}^3$. Find the radius of the sphere.
(c(i))[3]
A cuboid measures $2\text{ cm}$ by $6\text{ cm}$ by $22.5\text{ cm}$. Calculate the surface area of the cuboid.
(c(ii))[3]
A cube with edge $x\text{ cm}$ has the same surface area as the cuboid. Write an equation in $x$ and solve it to determine the length of the cube’s edge.