Which angle is complementary to $4°$?

• A. $84°$
• B. $94°$
• C. $76°$
• D. $86°$

Answer: (D)

Verified step by step guidance

1. Recall that two angles are complementary if the sum of their measures is \$90^\circ$.
2. Let the given angle be \$4^\circ\(. To find its complementary angle, set up the equation: \)4^\circ + x = 90^\circ$.
3. Solve for \(x\) by subtracting \$4^\circ\( from both sides: \)x = 90^\circ - 4^\circ$.
4. Calculate the difference to find the measure of the complementary angle: \(x = 86^\circ\).
5. Therefore, the angle complementary to \$4^\circ\( is \)86^\circ$.