Question

Given: a = 640, A= 70°, B = 52° in triangle ABC; find c. Round answers to the nearest whole number.

Answer 1

C=58 degrees.

Explanation:

Triangles always equal 180 degrees. Knowing this you could make an equation that looks like 180-(70+52)=C. Then solve.

180-(70+52)=C

180-122=C

58=C