Medium
In a right triangle, the two legs measure 4 cm and 3 cm. Find the length of the hypotenuse.
Explanation
Explanation
By the Pythagoras theorem, (hypotenuse)² = (leg₁)² + (leg₂)². Here 4² + 3² = 16 + 9 = 25 = 5², confirming the sides 4, 3, 5 form a right triangle so the hypotenuse is 5 cm.
PRO TIP
Re-check your working by substituting the answer back into the original question.