Question

How do you solve the triangle given a=13, b=16, c=18?

Answer 1

A=44.48degrees, B=59.57 degrees, C=75.95 degrees

Explanation:

Triangle can be solved using cosine formula. First, `cosA= (b^2 +c^2 -a^2)/(2bc)`

=`(256+324-169)/576`

= `411/576`. This would give A= arc cos 411/576= 44.48 degrees

Like wise B= 59.57 degrees and C=75.95 degrees.