Question
is the midpoint of the side of a parallelogram . If , find .
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Text solutionVerified
Join the diagonal
From the figure we know that the diagonal divides the parallelogram into two triangles having the same area
It can be written as
Area of Area of ......(1)
We know that and parallelogram are on the same base and between the same parallel lines and .
It can be written as
Area of = Area of ( Area of parallelogram )
From the figure we know that is the midpoint of
So we get
Area of = Area of ( Area of ( Area of
It can be written as
Area of = Area of + Area of
By substituting the values
Area of ( Area of )
It can be written as
( Area of )
By cross multiplication
( Area of )
On further calculation
( Area of )
So we get
Area of
By division
Area of
From equation (1)
Area of Area of
Therefore, Area of .
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Question Text | is the midpoint of the side of a parallelogram . If , find . |
Answer Type | Text solution:1 |
Upvotes | 150 |