Question

Find the measure of the complement and the supplement of the angle.

Answer 1

Two angles are complementary if their measures add up to 90 deg.
Two angles are supplementary if their measures add up to 180 deg.

Complement: 90 - 12 = 78
Supplement: 180 - 12 = 168

Answer: B. complement 78 deg, supplement 168 deg

Answer 2

Hello there!


`*` (Complementary angles): These angles are not greater than or less than 90°.

Therefore, we then do
`\left[\begin{array}{ccc}12-90=78\end{array}\right]`.


`*` (Supplementary angles): These kind of angles would be angles that are no greater than to 180°.

We then do
`\left[\begin{array}{ccc}180-12=168\end{array}\right]`.

Your correct answer: (Option B).