pricekids1502
pricekids1502 pricekids1502
  • 22-03-2019
  • Mathematics
contestada

Find the missing length. Round to the nearest tenth, if necessary.

A. 441
B. 22.5
C. 64
D. 19.4

Find the missing length Round to the nearest tenth if necessary A 441 B 225 C 64 D 194 class=

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 22-03-2019

Using the Pythagorean theorem:

21^2 = √(8^2 + x^2)

441 = √( 64  + x)

441 - 64 = √x

377 = √x

x = √377

x = 19.4

The answer is D.

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