Tuesday

July 22, 2014

July 22, 2014

Posted by **rosemary flores** on Monday, June 6, 2011 at 3:46pm.

- algrebra 2 / trig -
**Reiny**, Monday, June 6, 2011 at 4:29pmguessing 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.

**Related Questions**

Trig - Should the triangle be solved beginning with Law of Sines of Law of ...

Trig - Should the triangle be solved beginning with Law of Sines of Law of ...

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

Math Trig - I have to find the x (bottom length of the triangle) in a right ...

trig - Use the Law of Sines to solve each triangle. P=110 degrees p=125, r=200 ...

Trig - In triangle ABC, A=35 degrees, a=43, and c=20. Determine whether ABC has ...

trig - Please answer b)only a) If a triangle has angles of 35 and 65 degrees, ...

9th grade algrebra - Question 21 (Essay Worth 8 points) [2.08] The formula for ...

trig - If a triangle has angles 35 and 65 degrees, what is the measurment of the...

algebra 2 - solve the triangle triangle BCD <D=90 degrees <B=21 degrees b=...