Question

The hypotenuse of a triangle is 17 cm long .If one of the remaining two sides is of length 8cm.
Find the length of the third side

Answer 1

pythagoras theorem,
$a^2+b^2=c^2$
where a and b are the sides and c is the hypotenuse.
Here, a = 8, c = 17
So, $b^2={17}^2-8^2=225$
So, $b=\sqrt{\left(225\right)}=15cm$