Triangles
> Question
VSA
1 mark
Year: 2020
Easy
CBSE Class 10
triangles
pythagoras-theorem
Question
In
△
A
BC
,
A
B
=
6
3
cm,
A
C
=
12
cm and
BC
=
6
cm, then
∠
B
=
________.
Solution
1
A
B
2
+
B
C
2
=
(
6
3
)
2
+
6
2
=
108
+
36
=
144
=
1
2
2
=
A
C
2
. Since
A
B
2
+
B
C
2
=
A
C
2
,
∠
B
=
90°
+1 mark
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