Fill in the blanks.
(i) Area of triangle $=\frac{1}{2} \times(\ldots \ldots \ldots) \times(\ldots \ldots \ldots .)$.
(ii) Area of a $\| \mathrm{gm}=\frac{1}{2} \times(\ldots \ldots . .) \times(\ldots \ldots . .)$.
(iii) Area of a trapezium $=\frac{1}{2} \times(\ldots \ldots . .) \times(\ldots \ldots . .)$.
(iv) The parallel sides of a trapezium are 14 cm and 18 cm and the distance between them is 8 cm. The area of the trapezium is ......... cm2.
(i) Area of a triangle $=\frac{1}{2} \times(B$ ase $) \times(H$ eight $)$
(ii) Area of a $\| \mathrm{gm}=(B$ ase $) \times(H$ eight $)$
(iii) Area of a trapezium $=\frac{1}{2} \times$ (Sum of the parallel sides) $\times(D$ istance between them $)$
(iv) Area of a trapezium $=\left\{\frac{1}{2} \times(14+18) \times 8\right\} \mathrm{cm}^{2}$
$=\left(\frac{1}{2} \times 32 \times 8\right) \mathrm{cm}^{2}$
$=128 \mathrm{~cm}^{2}$