Question

The right side of -5 on the number line is - A 4. B. -6 с -7 D Both B, C​

Answer 1

Answer:

Step-by-stei) Given,  a=7,cm,b=24cm and c=25cm

c  

2

=a  

2

+b  

2

         [ By using Pythagoras theorem ]

c  

2

=7  

2

+24  

2

 

c  

2

=49+576

c  

2

=625

∴  c=25cm

Hence, the given triangle is right angled triangle.

(ii) given, a=9cm,b=16cm and c=18

c  

2

=a  

2

+b  

2

         [ By using Pythagoras theorem ]

c  

2

=9  

2

+16  

2

 

c  

2

=81+256

c  

2

=337

∴  c=18.35cm

Hence, the given triangle is not right angled triangle.

(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

explanation: