1 Find the area of the following trapeziums (Fig 11.8)
(i)
(ii)
(i) $\textrm{Area of trapezium} =\frac{1}{2}(\text { Sum of Parallel sides }) \times(\text { Distance between parallel sides })$
$=\frac{1}{2} \times 16 \times 3$
$=27 \mathrm{~cm}^2$
(ii)
$\textrm{Area of trapezium} =\frac{1}{2}(\text { Sum of Parallel sides }) \times(\text { Distance between parallel sides })$
$=\frac{1}{2} \times(10+5) \times 6$
$=45 \mathrm{~cm}^2$