The length of the parallel sides of a trapezium are 5cm and 7cm. If its area is 120cm\(^2\), find the perpendicular distance between the parallel sides
A
5.0cm
B
6.9cm
C
10.0cm
D
20.0cm
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
Area of trapezium = \(\frac{1}{2} (a + b)h\)
\(120 = \frac{1}{2} (5 + 7) \times h\)
\(120 = 6h\)
\(h = 20 cm\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #26465)