CBSE Class 9 Answered
ABCD is a trapezium In which AB DC and DC = 40 cm and AB = 60 cm. If X and Y are respectively, the mid points of AD and BC, prove that ar (DCYX) = ar (XYBA).
Asked by Topperlearning User | 17 Aug, 2017, 02:01: PM
Expert Answer
Since X and Y are the mid points of AD and BC respectively,
Trapezium DCYX and ABYX are of the same height, say h cm.
Area of trapezium DCYX = (DC + XY)h
= (40 + 50) h
= 45 h cm2
XY = (AB + DC) = 50 cm.
Area of trapezium ABYX = (AB + XY) h
= (60 + 50) h
= 55 h cm2
ar (DCYX) = ar (ABYX)
Answered by | 17 Aug, 2017, 04:01: PM
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