Question

what is the value of b?

Answer 1

The value will be 5

as for the popular Pythagoras triplet

Answer 2

Hey dude......

Let angle ABC=right angel

Angel B=90°

AB=3

BC=b

AC=4

Now,

By Pythagoras theorem

AC²=AB²+BC²

4²=3²+b²

16=9+b²

16-9=b²

7=b²

b=√7....... Taking square root of both side

b=2.6

Therefore BC=2.6