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

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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