A trapezium and a parallelogram have the same height of 10 cm and the same area. The parallelogram has base 18 cm. If the trapezium's parallel sides are 14 cm and x cm, find x.
Class 8Area of a TrapeziumMensuration
A24
B44
C20
D22
Step-by-Step Solution
Parallelogram area = 18×10=180. Trapezium: 21(14+x)(10)=180, so 14+x=36,x=22 cm.
Answer: D) 22
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