the formulas for area of a triangle require the length of any two sides of the triangle amd the measure of the included angle.Tr
1 answer:
You might be interested in
we know that
The sum of the internal angles of a triangle must be equal to degrees
see the attached figure with letters to better understand the problem
m∠B+°-----> by supplementary angles
m∠B=
m∠A=
m∠C=
m∠A+m∠B+m∠C=
Substitute
therefore
the answer is
the value of x is equal to
