Hard
In a right triangle, the two legs measure 36 cm and 15 cm. Find the length of the hypotenuse.
Explanation
Explanation
By the Pythagoras theorem, (hypotenuse)² = (leg₁)² + (leg₂)². Here 36² + 15² = 1296 + 225 = 1521 = 39², confirming the sides 36, 15, 39 form a right triangle so the hypotenuse is 39 cm.
PRO TIP
Re-check your working by substituting the answer back into the original question.