Thread: hypotenuse help please

In a right triangle ABC, the legs are AB = 5 and BC = 12, and in the right triangle DEF, the hypotenuse is DE = 10, and EF = 8. Which is DF + AC?

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Originally Posted by sanee66

In a right triangle ABC, the legs are AB = 5 and BC = 12, and in the right triangle DEF, the hypotenuse is DE = 10, and EF = 8. Which is DF + AC?

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15
13
12

In a right triangle the "legs" are the sides other than the hypotenuse, so in
(by Pythagoras' theorem) .

In we have the hypotenuse is , and leg , so:



so:



RonL