Question

what is the supplement of 40°?
s = ?°

Explanation:

Step1: Recall the definition of supplementary angles

Two angles are supplementary if their sum is \(180^{\circ}\). Let the supplement of \(40^{\circ}\) be \(S\). Then the equation is \(S + 40^{\circ}=180^{\circ}\).

Step2: Solve for \(S\)

Subtract \(40^{\circ}\) from both sides of the equation: \(S=180^{\circ}- 40^{\circ}\).

Answer:

\(140\)