6.2+due+11-11

Done By Aggie Tutia I got the same answers. Checked by Matt bogaert done by: Rebekah Adair I got the same thing,but on #6 I got C=146.789 degrees checked by:Valeria Chelala


 * 1) 20 & 21



22,27 Worked by Jan Dudek

I found the same answers. Checked by Sam Bennack.

Work by: Freddie Jordan Checked by: Kamryn Richard
 * 1) 20-21 look good. I did it the same way and got the same answers :)



It cut off my answer, but I got: theta = 127.169 degrees. I got the same thing -Michael Herzberg
 * 1) 28 work by:Frances Dannenbrink


 * 31



I got the same answer for A, however for B i did cos C = (235^2+178^2-273^2)/(2*235*178) to get cos C= .148 C=81.490 degrees Checked by Alex Dubois
 * 1) 31 done by Miles Hennington
 * #31 Bearings: **

I'm not sure if this is correct. The way I did it I only used the law of sines. I also forgot to add the units. The answer should be 3.949 ft. Worked by: Meredith Hohl
 * 34
 * # 34 is correct and here is another way to work it: **

Alyssa Johnson

I got the same thing the same way!
 * 1) 35 checked by Amy Finkelstein

36 check done by Mady Smith - I did this problem completely differently??? So I uploaded what I did.#36 usin
 * #36 - when using the area formula you must use the included angle: **

39. False. If you solve for the first angle, angle A, you will see that cosA= 1.3125. This is out of the range for cosines as cosine can be greater than or equal to 0 and less than or equal to 1. -Blake Schreiber Thats correct Blake good job!! I think i got cosA=1.13125 but still false would be correct and for the same reason. Checked By: Leslie Baker

40. True, A unique triangle with SAS can always be determined- with the Law of Cosines. Done by Kelsey Harmon I got the same thing Checked by Andrew Kim

41. False. The s in herons area formula stands for the semi perimeter of the triangle, which is the sum of all the sides divided by two. An average is a sum of a group of numbers divided by the amount of numbers in that group. In a triangle's case this would be the sum of the three sides divided by 3, which is not the formula. - Emily Johnson

Good Job! I got the same answer! Checked by: Courtney Venable