You can find the missing side of a right triangle by using the Pythagorean Theorem (a² + b² = c²), where c is the hypotenuse. So, just plug the given numbers in and solve for c.
a² + b² = c² Plug 6 and 8 in for a and b (order doesn't matter) 6² + 8² = c² Square both numbers 36 + 64 = c² Add 100 = c² Take the square root of both sides 10 = c Switch the sides of the equation to make it easier to read c = 10
You require the Pythagorean Theorem: in a right triangle, the sum of the squares of the legs equals the square of the hypotenuse.In this case 6^2 + 8^2 = 36 + 64 = 100 = 10^2 the hypotenuse is 10.
