alleryA trapezium of area 90 cm² has parallel sides 11 cm and 19 cm. What is its height?
A6 cm
B9 cm
C7.5 cm
D5 cm
Answer & Solution
Correct answer: A. 6 cm
From 1/2 × (11 + 19) × h = 90, 15h = 90, so h = 6 cm.
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