Can the sides 3, 4, 5 be a right triangle? Trigonometry Right Triangles The Pythagorean Theorem 1 Answer GiĆ³ · Shantelle Apr 15, 2018 Yes Explanation: Consider Pythagoras Theorem with #5# as the hypotenuse you get: #5^2=3^3+4^2# #25=9+16# which is true! Answer link Related questions What is the Pythagorean Theorem? How did the pythagorean theorem come about? What does the pythagorean theorem mean? What is the diagonal length of the suitcase to the nearest tenth of a foot if a suitcase... How do you know what to plug in for a, b, c in the pythagorean theorem? What is the length of b in a right triangle if #a=2# and #c=24#? What is the length of the ladder if a ladder of length L is carried horizontally around a corner... How do you find the missing side of a triangle if one long side is 12 and the base is 5? How do you use pythagorean theorem to solve the right triangle if the legs have lengths 4 and 9? How do you find the third side of a right triangle if the base is x = 20m, and height is y = 20m? See all questions in The Pythagorean Theorem Impact of this question 3810 views around the world You can reuse this answer Creative Commons License