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CBSE Class 9 Answered

ABCD is a trapezium in which AB|| DC.D is produced to E such that CE=AB. prove that area ABD triangle = area BCE triangle
Asked by manvendra singh | 21 Nov, 2013, 09:55: PM
answered-by-expert Expert Answer
Given, CE || AB and CE = AB
Thus ABEC is a parallelogram
It is known that diagonal of a parallelogram bisect it into two triangles of equal area
∴ area (?ABC) = area (?BCE) …(1)
?ABD and ?ABC lie on the same base AB and between same parallels AB and DC
∴ area (?ABC) = area (?ABD) …(2)
From equations (1) and (2)
area (?ABD) = area (?BCE)
Answered by | 21 Nov, 2013, 11:33: PM

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