Question

Fill in the blanks.
(i) Area of triangle =$\frac{1}{2}\times (.........)\times (.........)$.
(ii) Area of a ||gm = $\frac{1}{2}\times (.........)\times (.........)$.
(iii) Area of a trapezium = $\frac{1}{2}\times (.........)\times (.........)$.
(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.

Answer 1

i) Area of a triangle=$\frac{1}{2}$×Base×Height
ii) Area of a ∥gm=Base × Height
iii) Area of a trapezium=$\frac{1}{2}\times$Sum of the parallel sides×Distance between them.
iv) Area of a trapezium=$\frac{1}{2}\times (14+18)\times 8c{m}^2$
=$\frac{1}{2}\times 32\times 8c{m}^2$
$=16\times 8$
$=128c{m}^2$