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Question

In a parallelogram ABCD,E is mid-point of side AB and CE meets the diagonal BD at point O.
If area of ΔEOB=80cm2. Calculate OE:OC

A
2:1
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B
1:2
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C
1:3
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D
3:1
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Solution

The correct option is B 1:2
gives:
ar (EOB) = 80cm2

In EOB and DOC,

EOB =DOC (vertically opposite angles are equal)

BEO =OCD (alternate interior angles are equal)

EBO =ODC (alternate interior angles are equal)

EBO CDO

OEOC =BEDC =12 (since,E is mid point of AB)

Ans: B)1:2.

925627_196123_ans_35c97acabda74734a502940fc21f7707.png

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