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I need help. Can someone help me?

I need help. Can someone help me?-example-1
User GayleDDS
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The answer to this question is 12x. Have a nice day
User Tomaoq
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The altitude x bisects the isosceles triangle into two congruent right triangles,

one leg 10/2=5, one leg x, hypotenuse 13.

We have

5² + x² = 13²

I'll skip the solving and the square root; we recognize the (5,12,13) Pythagorean Triple, the second one on the list after (3,4,5).

Answer: x=12

User NatKSS
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