1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VII
Mathematics
Pythagoras Theorem
If ∆ABC is an...
Question
If ∆ABC is an isosceles triangle with ∠C = 90° and AC = 5 cm, then AB is
[
1
]
a) 2.5 cm
b) 5 cm
c) 10 cm
d)
5
√
2
cm
Open in App
Solution
A
B
2
=
A
C
2
+
B
C
2
A
B
2
=
5
2
+
5
2
.
.
.
(
I
t
i
s
a
n
i
s
o
s
c
e
l
e
s
t
r
i
a
n
g
l
e
)
A
B
=
√
50
∴
A
B
=
5
√
2
Correct Option : d)
5
√
2
Suggest Corrections
21
Similar questions
Q.
If △ABC is an isosceles right-triangle right angled at C such that AC = 5 cm. Then, AB =
(a) 2.5cm
(b)
5
2
cm
(c) 10 cm
(d) 5 cm