Question

Write a system of equations. You do NOT have to solve. A triangle has one angle, A, that measures 20 degrees more than twice the smallest angle, C. The largest angle, B, is ten less than the sum of the other two angles. The sum of the angles of a triangle is 180 degrees.

Answer 1

The system is:

∠A = 20 + 2∠C

∠B = ∠A + ∠C - 10

∠A + ∠B +∠C = 180°