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

how does wind and water change the size of mountains<br />

What do these fatwas indicate with regard to the balance between practical legal reasoning and religious dictates?

if the are three pairs of homologous chromosomes before mitosis, then how many homologous pairs are three in the two daughter cells following mitosis

What is the aprox. average height of a full grown man in the us? 6'3" 5'9" 5'6" 5'5"?

what is the sum of the digits of all 2-digit numbers from 10-99?

Anna is making a birthday hat from a pattern that is 3/4 of a circle of colored paper.If anna's head is 7 inches in diameter,will the hat fit her?

What is the difference between a single gene disorder, multifactorial disorder and a chromosomal abnormality?

At 3 PM Caretta's shadow is 1.15 m long her height is 1.56 meters, at the same time the trees shadow is 6.1 m long.how tall is the tree??

How did the end of segregation happen?

Thanks :) Make sure to try and not guess