Please, could someone help me with this Optimization problem?

What is the largest possible area for a triangle whose hypotenuse is 5cm. long?

Re: Please, could someone help me with this Optimization problem?

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**Cacia** What is the largest possible area for a triangle whose hypotenuse is 5cm. long?

Since it has a hypotenuse, we'll assume that it's right-angled. Call the base of the triangle , then the height must be by Pythagoras.

So the area is . Differentiate this, set the derivative equal to 0, solve for x, then evaluate the area at this value of x.