Question

3. ABCD is an ice skating ground in the shape of a trapezium. If the parallel sides of trapezium are AD = 10 m
and BC = 23 m and DC=40 m and D is a right angle, find the area of the ice skating field.​

Answer 1

Step-by-step explanation:

Area of trapezium

$= \frac{sum \: of \: parallel \: sides \times h}{2}$

As /_D=90°

So DC is the height of the trapezium.

$= \frac{10 + 23}{2} \times 40 \\ = 33\times20 \\ = 660 {m}^{2}$