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

11. x squared - 7x = 0 12. 3x squared - 4x = 20x + 27
Which of the following is inaccurate in relation to viruses? a. They feature a capsid. b. They seek a specific host. c. They have nucleic acid core. d. They rep
how many 4ths are in 2/4, 3/4,and 9 1/4
What property is shown in the equation below? -43 / (-1)=43 A) reciprocal property B) negative one property of division C) identity property of division D) Div
what is 2096 to the nearest thousand
During the 1920s, people would buy stock on margin, which meant that they
What impact did the u.s supreme court case Griswold v. Connecticut have on women's rights
What is the correct label for a solution? A. a homogeneous mixture B. a graduated substance C. a heterogeneous mixture D. a primary mixture of elem
Which geographic feature contributed to the beginning of Farming communities?
How do the functions of individual cells compare with those of organisms? I NEED HELP! PLEASE!