Grade 8 · Math
Find a right-triangle hypotenuse practice
Apply the Pythagorean theorem to perpendicular side lengths.
Opening your practice adventure…
Try a sample
A right triangle has perpendicular legs 10 cm and 24 cm. What is the hypotenuse length in centimeters?
- 26
- 30
- 24
- 25
See the answer & why
26
102 + 242 = 676 = 262, so the hypotenuse is 26 cm.
A little hint: Use a2 + b2 = c2; c is opposite the right angle.
A teaching tip
The hypotenuse is opposite the right angle and must be the longest side.