In a right triangle, the length of one leg is 20 units. The length of the other leg is 12 units. What is the length of the hypotenuse?

a^2 + b^2 = c^2 The Pythagorean theorem.

c is the hypotenuse. a and b are the legs.

So. Rearrange algebraically first.

a^2 + b^2 = c^2

c = sqrt(a^2 + b^2)

c = sqrt(20 units^2 + 12 units^2)

c = sqrt(400 + 144)

c = sqrt(544)

c(hypotenuse) = 23.3 units

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