3 years ago

Find the length of the unknown side. Round your answer to the nearest tenth. *

1 answer:

6 0

Answer:

20cm

Step-by-step explanation:

a2 + b2 = c2

$15x^{2} + bx^{2} = 25x^{2} \\225 + b = 625\\625 - 225 = 400\\400\sqrt{x} = 20$

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