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The area of a trapezium is 1080 sq cm. Its parallel sides are in the ratio 5:4 and their sum is 72 cm.
Find the height of the trapezium (in cm).

Class 8Area of a TrapeziumMensuration

A30
B27
C33
D60

Step-by-Step Solution

1080 =

\frac{1}{2}

(72) h = 36 h

, so

h = \frac{1080}{36} = 30

cm. (The ratio is extra information.)

Answer: A) 30

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