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Madhya Pradesh Police Exam Model Paper 6
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© examsnet.com
Question : 54
Total: 101
The base and altitude of an isosceles triangle are 10 cm and 12 cm respectively. Then the length of each equal side is:
10 cm
7.5 cm
8.5 cm
13 cm
Validate
Solution:
In ΔABC
⇒ BC = 10 and AD = 12 cm
As we know, AD is perpendicular to BC.
In right angled triangle ABD
⇒
A
B
2
=
B
D
2
+
A
D
2
(Pythagoras theorem)
⇒
A
B
2
=
52
+
122
⇒
A
B
=
25
+
144
=
169
=
13
c
m
© examsnet.com
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