OpenStudy (anonymous):

For triangle ABC side a=19, side b=19 and angle A=141° find c to the nearest whole number. Thanks to whoever helps me out :)

4 years ago
OpenStudy (tester97):

well to find the c side of the triangle use Pythagorean theorem \[a^{2}+b ^{2}=c ^{2}\] So if\[a=19~and~b=19\] Then\[19^{2}+19^{2}=38^{2}\] So i would assume that side c is 38 but i could be wrong.

4 years ago