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

What is 258/300 written as a decimal and a percent???
The volume of a cube is given by V= x cubed where x is the length of an edge of the cube. A cube shaped end table has the volume of 3 3/8 cubic feet. What is th
Is there DNA in our food? How do you know?
WHAT COULD HAPPEN IN THE BODY IF PROTEINS OR ENZYMES LOST THEIR CONFORMATIONS OR WERE DENATURED?
plz helpp with this french hw!
373 of 500 in fractions and decimal
what are the effects of global warming
Enzymes have many uses in home and industry.what type of organisms are used to produce these enzymes?Chose the correct answer from the following options:Mammals
florence has only $420 in her hank account. describe how to find the amount after she writes a check for $590
How many seismic stations are needed to determine the location of an earthquake's epicenter?