Question

8 multiple choice 1 point write the complements of these angles. 18° 0 72° 70° 90°

Explanation:

Step1: Recall the definition of complementary angles

Complementary angles are two angles whose sum is \(90^{\circ}\). Let the complement of the given angle \(x = 18^{\circ}\) be \(y\). Then \(x + y=90^{\circ}\).

Step2: Solve for \(y\)

Substitute \(x = 18^{\circ}\) into the equation \(x + y = 90^{\circ}\). We get \(y=90^{\circ}-x\). So \(y = 90^{\circ}-18^{\circ}=72^{\circ}\).

Answer:

\(72^{\circ}\) (the second option)