![]() ![]() This puts ∠A to the bottom left, and ∠B to the bottom right.Ĭonstruct an altitude (or height) h from the interior right angle C to hypotenuse c (so it is perpendicular to c). The right triangle altitude theorem tells us that the altitude of a right triangle drawn to the hypotenuse c forms two similar right triangles that are also similar to the original right triangle.Ĭonstruct △ABC so that hypotenuse c is horizontal and opposite right angle C, meaning legs aa and bb are intersecting above c to form the right angle C. Learn how to use the Pythagorean Theorem to calculate the length of one side of a right triangle. The sum of the squares of legs, a and b , are equal to the square of hypotenuse, c, or The Pythagorean Theorem describes the relationship between the lengths of legs a and b of any right triangle to the length of hypotenuse, c: Greek mathematician Pythagoras gets the credit, but other civilizations knew about this theorem. If you connect the two endpoints of those line segments, you have a right triangle. Follow the lines to make a second line segment exactly 90° to your first line segment, of any desired length. Draw a line segment (of any desired length) along the graph paper's printed lines. You can make a more accurate right triangle by using graph paper and a straightedge. ![]() Laying the third strand c down to intersect the two endpoints of aa and bb creates a right triangle. Place the two short strands a and b so they meet at two endpoints and form a 90° angle. Leave one alone break the other strand into two unequal lengths. Use two uncooked spaghetti strands to make your own right triangle. It can be scalene or isosceles but never equilateral. A right triangle must have one interior angle of exactly 90°.
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