Law of Cos, Padlet 1a by Natalie Gross https://padlet.com/ngross/847boztw90jn Group number is to do the Law of Cosine portion of the problem. Move to the group to the right of yours and solve the Law of Sines portion of their problem. Move to the group to the right of that and find the missing angle. Lastly, move to the group to the right of that and comment on that problems from two different columns. The comment should be useful and specific - not just "Good Job. Hint: Take a picture of your work and post it below the problem. _____________________________________________________________________________________________________________ Group 1 does Law of Cos, Group 1 does Law of Sin for Group 2, Group 1 finds missing angle for Group 3, Group 1 then comments on Group 4 and 5 en-us 2018-03-07 22:39:34 UTC 2023-03-29 03:06:26 UTC hello@padlet.com a = 5, b=7, C=42 degrees ngross https://padlet.com/ngross/847boztw90jn/wish/239436893 2018-03-07 22:41:11 UTC https://padlet.com/ngross/847boztw90jn/wish/239436893 a=10,b=3, C=15 degrees ngross https://padlet.com/ngross/847boztw90jn/wish/239437204 2018-03-07 22:42:25 UTC https://padlet.com/ngross/847boztw90jn/wish/239437204 b=5, c=3, A=102 degrees ngross https://padlet.com/ngross/847boztw90jn/wish/239437299 2018-03-07 22:42:55 UTC https://padlet.com/ngross/847boztw90jn/wish/239437299 b=4,c=1, A=100 degrees ngross https://padlet.com/ngross/847boztw90jn/wish/239437352 2018-03-07 22:43:14 UTC https://padlet.com/ngross/847boztw90jn/wish/239437352 a=6,c=5,B=50 degrees ngross https://padlet.com/ngross/847boztw90jn/wish/239437400 2018-03-07 22:43:31 UTC https://padlet.com/ngross/847boztw90jn/wish/239437400 Law of Cosines 1210547 https://padlet.com/ngross/847boztw90jn/wish/244956527 cos(42)=0.743. Multiply this by -2 times 5 times 7, or negative 70. This shouls result in -52.02. Add this to five squared and seven squared to get 21.98. The square root of this is about 4.69 when rounded to the nearest hundreth. Therefore, side c is 4.69 units.]]> 2018-03-22 12:47:20 UTC https://padlet.com/ngross/847boztw90jn/wish/244956527 1211017 https://padlet.com/ngross/847boztw90jn/wish/244957974 2018-03-22 12:50:19 UTC https://padlet.com/ngross/847boztw90jn/wish/244957974 Law of cosine 3007359 https://padlet.com/ngross/847boztw90jn/wish/244958391 a=4.29]]> 2018-03-22 12:51:11 UTC https://padlet.com/ngross/847boztw90jn/wish/244958391 b=4.74 1210679 https://padlet.com/ngross/847boztw90jn/wish/244959855 2018-03-22 12:53:59 UTC https://padlet.com/ngross/847boztw90jn/wish/244959855 A=76 degrees 1210052 https://padlet.com/ngross/847boztw90jn/wish/244963214 Law of Sines]]> 2018-03-22 13:00:39 UTC https://padlet.com/ngross/847boztw90jn/wish/244963214 Law of Cosines this is emily https://padlet.com/ngross/847boztw90jn/wish/244965474 7.14]]> 2018-03-22 13:05:31 UTC https://padlet.com/ngross/847boztw90jn/wish/244965474 Law of Cosine 3010717 https://padlet.com/ngross/847boztw90jn/wish/244965558 a= 6.34]]> 2018-03-22 13:05:43 UTC https://padlet.com/ngross/847boztw90jn/wish/244965558 Law of Sines 1210547 https://padlet.com/ngross/847boztw90jn/wish/244965903 To find angle A, muliply 10 by sin(15). The formula of a/sin A = c/sin C can be rewritten as sin C times a = sin A times c. 10 times sin(15) is about 2.5882. Divide this by 7.14 to find that sin A = 0.36226. The number that gives you that value for sine is about 21.24. Therefore, 21.24 is the angle measurement for angle A.]]> 2018-03-22 13:06:24 UTC https://padlet.com/ngross/847boztw90jn/wish/244965903 Law of Cosines 1200594 https://padlet.com/ngross/847boztw90jn/wish/244966323 Use the formula:
a^2 = b^2 + c^2 - 2bc x cos A]]> 2018-03-22 13:07:21 UTC https://padlet.com/ngross/847boztw90jn/wish/244966323 Law of Sine 3010717 https://padlet.com/ngross/847boztw90jn/wish/244968482 B= 67 degrees]]> 2018-03-22 13:11:58 UTC https://padlet.com/ngross/847boztw90jn/wish/244968482 Law of Sin 1200594 https://padlet.com/ngross/847boztw90jn/wish/244970114 Use the formula:
b/sinB = a/sinA]]> 2018-03-22 13:15:06 UTC https://padlet.com/ngross/847boztw90jn/wish/244970114 Missing Angle 3010717 https://padlet.com/ngross/847boztw90jn/wish/244971424 Angle C= 54 degrees]]> 2018-03-22 13:17:35 UTC https://padlet.com/ngross/847boztw90jn/wish/244971424 Here is the missing angel I added 21.24 and 15 and subtracted this by 180 and got 143.76 1200712 https://padlet.com/ngross/847boztw90jn/wish/244971564 2018-03-22 13:17:48 UTC https://padlet.com/ngross/847boztw90jn/wish/244971564 Find the Missing Angle 1200594 https://padlet.com/ngross/847boztw90jn/wish/244972238 All of the angles in the triangle equal 180° (A+B+C= 180°]]> 2018-03-22 13:18:58 UTC https://padlet.com/ngross/847boztw90jn/wish/244972238 Law of Sines 1210052 https://padlet.com/ngross/847boztw90jn/wish/244974053 A=46 Degrees]]> 2018-03-22 13:22:13 UTC https://padlet.com/ngross/847boztw90jn/wish/244974053 Great job Oregano and Izzy 1200712 https://padlet.com/ngross/847boztw90jn/wish/244974181 2018-03-22 13:22:26 UTC https://padlet.com/ngross/847boztw90jn/wish/244974181 Thanks! lol 1200594 https://padlet.com/ngross/847boztw90jn/wish/244974451 2018-03-22 13:22:54 UTC https://padlet.com/ngross/847boztw90jn/wish/244974451 Missing Angle 1210052 https://padlet.com/ngross/847boztw90jn/wish/244974471 B=92 Degrees]]> 2018-03-22 13:22:56 UTC https://padlet.com/ngross/847boztw90jn/wish/244974471 comment 3007359 https://padlet.com/ngross/847boztw90jn/wish/244974756 here is the final Triangle ]]> 2018-03-22 13:23:26 UTC https://padlet.com/ngross/847boztw90jn/wish/244974756 Good picture Daniel 1200594 https://padlet.com/ngross/847boztw90jn/wish/244974887 2018-03-22 13:23:38 UTC https://padlet.com/ngross/847boztw90jn/wish/244974887