The area of the trapezium (as shown in the figure) is ________.
The distance between the parallel sides is 3 cm.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 24 cm2
The area of a trapezium is half the sum of the parallel sides times the distance between them; it is the area of a rectangle whose length is the average of the two parallel sides.
Parallel sides: 7 cm and 9 cm; distance between them: 3 cm
Area \(\displaystyle =\frac{1}{2}\times(7+9)\times3=\frac{1}{2}\times16\times3=24\) cm2