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

The English document that laid the groundwork for judges in the US to rule based on precedent is known as the

How do i work this problem y= -3x - 5

Which of these is a natural monopoly? Cell phone service Computer repair Package delivery service Sewage treatment

How would you determine whether something is living or non-living?

what is 127,034 rounded to the nearest ten thousand

How did the US change socialy between 1776 and 1870?

what is the value of 8 in 1,283,479

What important molecules does the nucleus contain?

In two or three sentences, describe the connection between the development of steel and the development of railroads. helppppp .

Another term for doing your fair share of work is A. balancing horizontal and vertical relationships. B. being prompt. C. carrying your own weight. D. communic