guy34 guy34
  • 01-01-2018
  • Mathematics
contestada

How to find the angles measures using the law of sines and cosines

How to find the angles measures using the law of sines and cosines class=

Respuesta :

tynollette tynollette
  • 01-01-2018
when the three side lengths are given, use law of cosine;
a²=b²+c²-2bcCosA
exampel: 17²=10²+11²-2*10*11CosA
220CosA=100+121-289=-68
CosA=-68/220
use a calculator to find: A≈107
Answer Link

Otras preguntas

Is 50 a multiple of 5 ?
How to find surface area of a regular pyramid
what is the outcome when a request for a writ of certiorari is denied and the court refuses to hear the case?
I need help on this. Please help
Stalin made a secret ______ with Germany called the Nonaggression Pact. A. present for Mexico B. deal or agreement C. language D. word peace declaration
Only 6,7,8 pls and thx
how does ppm compare to ppb?
One's duty to do a job or perform a task is called _____. answer a. authority b. accountability c. responsibility d. delegation
Ellen has had the same credit card for 6 years. She has $10,000 in available credit and usually charges $400 per month. She has never paid a bill late. She is c
Which personal pronoun correctly completes the sentence? __________ and Joe both love to play soccer. a. He b. Him < 99% sure c. His