Question

Which of the numbers given below denote the sides of a triangle?

6 cm, 9 cm, 2 cm.
7 cm, 5 cm, 13 cm.
7 cm, 6 cm, 8 cm.




Express 14 paise as rupees using decimals.

₹ 14.00
₹ 0.014
₹ 0.14

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Answer 1

Answer:

(iii) given, a=1.6,cm,b=3.8cm and c=4cm

c

2

=a

2

+b

2

[ By using Pythagoras theorem ]

c

2

=(1.6)

2

+(3.8)

2

c

2

=2.56+14.44

c

2

=17

∴ c=4.12cm

Hence, the given triangle is not right angled triangle.

(iv) given, a=8,cm,b=10cm and c=6cm

b

2

=a

2

+c

2

[ By using Pythagoras theorem ]

b

2

=(8)

2

+(6)

2

b

2

=64+36

b

2

=100

∴ b=10cm

Hence, the given triangle is right angled triangle.