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Please help! will give brainlist if correct answer. NO LINKS
find the unknown side length x. round your answer to the nearest tenth
A) 21.5
B) 12.8
C) 58
D) 48

Please help will give brainlist if correct answer NO LINKS find the unknown side length x round your answer to the nearest tenth A 215 B 128 C 58 D 48 class=

Respuesta :

Answer:

58 Use pathagreon theorem

Step-by-step explanation:

a^2 + b^2 = c^2

Answer:

58

Step-by-step explanation:

The Pythagorean theorem says

[tex]40^{2} + 42^{2} = x^{2}[/tex]

[tex]x^{2}[/tex] = 1600 + 1764

   = 3364

x = [tex]\sqrt{3364}[/tex] = 58

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