math

In isosceles right triangle ABC, point D is on hypotenuse BC such that AD is an altitude of triangle ABC and DC = 5. What is the area of triangle ABC?

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asked by charles
  1. well, ADB is also an isosceles right triangle with sides of 5.

    So, its hypotenuse is AB = 5√2

    that help?

    1. 0
    posted by Steve
  2. Please, just help solve it, and don't give a tip. I still don't follow this.

    1. 0
    posted by Julie
  3. I solved it by myself . . . thanks fir the little tip. The answer is 25.

    1. 0
    posted by Sarah
  4. Thanks!

    1. 0
    posted by Julie

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