3 years ago

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AD = 9

Mathematics

1 answer:

8090 [49]3 years ago

6 0

Answer:

Step-by-step explanation:

Use a special rule: BD^2=AD*DC (the squared height in right triangle drawn to hypotenuse is equal to the product of the parts of hypotenuse on which height divides the hypotenuse) 12^2=9*DC

DC=16

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