ulili
ulili ulili
  • 22-04-2020
  • Mathematics
contestada

help with #22 please

help with 22 please class=

Respuesta :

amna04352
amna04352 amna04352
  • 22-04-2020

Answer:

side c = 10.2

A = 52.6°

B = 37.4°

Step-by-step explanation:

c² = 8.1² + 6.2²

c² = 104.05

c = 10.20049018

Using cosine law:

8.1² = 10.2² + 6.2² - 2(10.2)(6.2)cos

cosA = 7687/11648

A = 52.57199409

A = 52.6°

B = 180 - 90 - 52.6 = 37.4°

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