jhil0021
jhil0021 jhil0021
  • 09-04-2021
  • Mathematics
contestada

Triangle PQR is shown.

Triangle PQR is shown class=

Respuesta :

minahilzahra78654321 minahilzahra78654321
  • 11-04-2021

Answer:

x=23

Step-by-step explanation:as we know the formula,

c^2=a^2+b^2-2ab(cosC)

So,x^2=14^2+20^2-2(14)(20)cos(19)

x^2=596-529.49

x=23

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