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RRB Junior Engineer Stage 1 Model Papers 9
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© examsnet.com
Question : 2
Total: 100
If ∆ABC is an isosceles triangle with ∠C = 90º and AC = 5 cm, then AB is :
5 cm
10 cm
5
√
2
cm
2.5 cm
Validate
Solution:
∆ABC is an isocoles triangle.
Therefore, AC = BC = 5 cm
Now,
A
B
2
=
A
C
2
+
B
C
2
A
B
2
=
5
2
+
5
2
⇒
√
25
+
25
=
5
√
2
cm
© examsnet.com
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