The area of a right triangle is 336 cm². The base of the right triangle is 48 cm.

Question

What is the length of the hypotenuse of the right triangle?

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Answer 1

draw it :)

then draw two more sides to make it into a rectangle

336 is the area of half that rectangle of length x and width h:

(1/2)(48) x = 336
and then
x^2 + 48^2 = hypotenuse^2
The hypotenuse is of course a diagonal of that rectangle you drew.
h^2 + 48^2