Question

In the figure, what is the area of the trapezium ABCD?
D
18 cm
С
1
15 cm
9 cm
I
1
A
30 cm
B.​

Answer 1

Answer:

Area of trapezium ABCD = Area of ∆ ABD + Area of ∆ CBD

= 1/2 × a × h + 1/2 × b × h

= 1/2 × h × (a + b)

= 1/2 (sum of parallel sides) × (perpendicular distance between them