In quadrilateral ABCD,


a)

b)

c)

a)
To find:
The name of the triangle is congruent to
Procedure used:
The perpendicular bisectors, bisect each other equally and makes right angles.
Given:
The quadrilaterals ABCD is shown in the figure below,
Figure
From figure
Calculation:
Consider the triangles,
Since,
The side
The side
And, the angle
b)
The triangle
c)
The triangle
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