3 years ago

Find the value of x.

Mathematics

1 answer:

valentina_108 [34]3 years ago

5 0

Answer:

x = 100

Step-by-step explanation:

The ratios of long side to hypotenuse are the same for all these triangles.

x/(x+10) = (x+10)/(x+21)

x^2 +21x = x^2 +20x +100 . . . . . multiply by (x+10)(x+21), expand

x = 100 . . . . . . . . . . . . . . . . subtract x^2 +20x

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