algrebra 2 / trig

posted by .

solve the triangle a=1 b=2 C=50 degrees

• algrebra 2 / trig -

guessing that you are describing a triangle ABC , use the cosine law

c^2 = a^2 + b^2 - 2(a)(b)cosC
= 1 + 4 - 2(1)(2)cos50
= 2.42885
c = 1.5585

Now use the sine law to find a second angle.
The use the angle sum of a triangle to find the third angle.

Similar Questions

1. Trig

In triangle ABC, A=35 degrees, a=43, and c=20. Determine whether ABC has no solution, one solution, or two solutions. Then solve the triangle. Round to the nearest tenth. no solution.
2. Trig

Should the triangle be solved beginning with Law of Sines of Law of Cosines. Then solve the triangle. Round to the nearest tenth. a=16, b=13, c=10. Cosines A=93 degrees, B=54 degrees, C=33 degrees
3. Trig

Should the triangle be solved beginning with Law of Sines of Law of Cosines. Then solve the triangle. Round to the nearest tenth. A=56 degrees, B=38 degrees, a=13. Sines. I get confused on the formula. I know C=86 degrees
4. trig

Please answer b)only a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle?
5. trig

Solve the triangle ABC if angle A = 76 degrees and a = 12, b = 4

Question 21 (Essay Worth 8 points) [2.08] The formula for degrees Celsius is: C = 9 over 5 (F − 32), where F stands for degrees Fahrenheit. Part 1: Solve the formula for F. Show all steps. Part 2: Determine how many degrees Fahrenheit …
7. trig

Use the Law of Sines to solve each triangle. P=110 degrees p=125, r=200 in triangel PQR
8. Math Trig

I have to find the x (bottom length of the triangle) in a right triangle. angle A is 33.9 degrees angle B is 90 degrees and the height of the triangle is 3.3cm What formula do I use to figure out this question?
9. Trig

Does this result in no triangle, 1 or 2 triangles?
10. Math

The hypotension of a 30,60,90degree triangle is 5m.long write a problem real life situation that you can solve using this triangle. Plss help me I don't I don't understand how to solve 30,60,90 and also 45,45,90 degrees of a triangle

More Similar Questions