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Byju's Answer
Standard VII
Mathematics
SAS Criteria for Congruency of Triangles
If ∠ ADE = ...
Question
If
∠
A
D
E
=
∠
A
E
D
and
A
D
A
B
=
A
E
A
C
, prove that
Δ
B
A
C
is an isosceles triangle.
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Solution
A
D
A
B
=
A
E
A
C
⇒
A
B
=
A
C
∠
A
D
E
=
∠
A
E
D
⇒
∠
A
B
C
=
∠
A
C
B
Since 2 sides are congruent, and
2 angles are congruent.
Given triangle is an Isosceles triangle.
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Q.
In the adjacent figure, CD and BE are altitudes of an isosceles triangle ABC with
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Q.
In the given figure , ABC is an isosceles triangle in which AB
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