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Byju's Answer
Standard VII
Mathematics
Pythagoras Theorem
In the quadri...
Question
In the quadrilateral
A
B
C
D
,
A
D
=
C
D
and
∠
A
=
90
o
=
∠
C
, prove that
A
B
=
B
C
.
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Solution
Reference to the image above,
In
△
A
B
D
&
△
B
C
D
A
D
=
C
D
(Given... height)
B
C
=
B
C
(Common... Hypotenuse)
∠
B
A
D
=
∠
B
C
D
(right angles)
∴
△
B
A
D
≅
△
B
C
D
(By RHS congruency Rule)
∴
A
B
=
B
C
( By CPCT)
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