Question

Find the length of hypotenuse of a right triangle the other two side which measure 9 CM and 12 CM

Answer 1

H Square = P square + B square

Hsquare = 9 square + 12 square

Hsquare = 81+ 144

Hsquare = 225

So, H= Root 225

Which is Hypotenuse = 15

Answer 2

Let the side AB=9 cm and BC = 12 cm and the hypotenuse is AC

We know that since ABC is a righ tangled triangle,

AB^2+BC^2=AC^2  [by Pythagoras theorem]

9^2+12^2=AC^2

81+144=AC^2

AC^2=225

AC=√225−−−=15

Hypotenuse=15cm ANS