chillywhistle
chillywhistle chillywhistle
  • 12-07-2019
  • Mathematics
contestada

Find the the measure of angle T

Find the the measure of angle T class=

Respuesta :

Luv2Teach
Luv2Teach Luv2Teach
  • 13-07-2019

Answer:

38.7°

Step-by-step explanation:

Use the Law of Cosines:

[tex]7^2=11^2+10^2-2(11)(10)cosT[/tex] and

49 = 121 + 100 - 220cosT so

-172 = -220cosT and

.781818181 = cosT

Using the inverse cosine function on your calculator, you find that angle T = 38.7 degrees

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