Question
The diagonals of a cyclic quadrilateral are at right triangles. Prove that the perpendicular from the point of their intersection on any side when produced backwards, bisects the opposite side.
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Text solutionVerified
Consider as a cyclic quadrilateral with diagonal and intersecting at right angles
We know that so that meets the line at the point
From the figure, we know that the angles in the same segment are equal
We know that we get
.....(1)
We know that is a straight line and
So we get
.....(2)
It can be written as
On further calculation
So we get
and
It can be written as
We get
In the same way
so
therefore, it is proved that the perpendicular from the point of their intersection on any side when produced backward, bisects the opposite side.
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Question Text | The diagonals of a cyclic quadrilateral are at right triangles. Prove that the perpendicular from the point of their intersection on any side when produced backwards, bisects the opposite side. |
Answer Type | Text solution:1 |
Upvotes | 150 |