(a(i))[1]
A rectangular field has dimensions of $30\text{ m}$ and $45\text{ m}$. Calculate the perimeter.
(a(ii))[2]
Calculate the diagonal length.
(b)[4]
The diagram shows a sketch of triangle $PQR$. Every length is in centimetres. Calculate the value of $a$.
(c)[6]
The diagram shows a sketch of quadrilateral $ABCD$. Every length is given in centimetres. The area of quadrilateral $ABCD$ is $70\text{ cm}^2$. Calculate $\angle DAB$.