Question

1.Find the area of a trapezium with parallel sides of

length 15 cm & 7 cm. The perpendicular distance
between the parallel sides is 6.8 cm.

Answer 1

The area of the trapezium is
`74.8\ cm^2`

Explanation:

Area of a trapezium:

`\displaystyle A=(b1+b2)/(2)h`

This formula is valid if b1 and b2 are parallel and h is perpendicular to both.

Since the trapezium given in the problem satisfies those conditions, we use the formula with:

b1=15 cm

b2=7 cm

h=6.8 cm

`\displaystyle A=(15+7)/(2)\cdot 6.8`

`A=74.8\ cm^2`

The area of the trapezium is
`74.8\ cm^2`