maryjanne200 maryjanne200
  • 23-04-2021
  • Mathematics
contestada

Find the length of the third side. If necessary, round to the nearest tenth.
13
20
help please !

Find the length of the third side If necessary round to the nearest tenth 13 20 help please class=

Respuesta :

rxlew rxlew
  • 26-04-2021

Answer: D, 15.2

Step-by-step explanation:

use formula a^2 + b^2 = c^2

a^2 + 13^2 = 20^2

a^2 + 169 = 400

       - 169   -169

a^2 = 231

sqrt   sqrt

a = sqrt(231)

a = 15.198 = 15.2

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