Thursday

August 28, 2014

August 28, 2014

Posted by **Richard** on Sunday, July 6, 2014 at 1:20am.

I have tried to do this problem, don't get me wrong, but I don't really know where to go. Can someone tell me how to even approach this problem?

The textbook states that the answers are: 99 degrees opposite the 190 cm side; 3*10 degrees opposite the 95 cm side; 51 degrees opposite the 95 cm side.

That being said, I would still like to know how to do this problem.

- Physics -
**Richard**, Sunday, July 6, 2014 at 1:21amSorry, there was a typo. *51 degrees opposite the 150 cm side.

- Physics -
**Damon**, Sunday, July 6, 2014 at 4:45amuse law of cosines

a = 95

b = 150

c = 190

c^2 = a^2 + b^2 - 2 a b cos C

36100 = 9025 + 22500 - 28500 cos C

28500 cos C = -4575

cos C = -.16053

C = 99.2 degrees

now use law of sine to find the next one

**Related Questions**

geometry - find the value of x in each triangle: triangle x has 1 angle at 53 ...

geometry - find the value of x in each triangle: triangle x has 1 angle at 53 ...

geometry - If a triangle has sides of lengths a and b, which make a C-degree ...

maths - shapes - Can you name these quadrilaterals? a) All sides are the same ...

geometry - Find the bisectors of the interior angles of the triangle whose sides...

PreCalc - An isosceles triangle is a triangle with two sides that are the same ...

Math - Need help on the problem below. Tommy drew a triangle. Which information ...

Math (Pre-Cal) - There is exactly one triangle the length of whose sides are ...

geometry - WHAT IS THE BASE LENGTH OF AN ISOSCELES TRIANGLE IF YOU KNOW THE ...

Math - BASIC MATHEMATICS MAT/115 I have this problem and it is my last one and I...