If one angle measures $3°$, which of the following angles is complementary to it?

• A. $87°$
• B. $93°$
• C. $180°$
• D. $77°$

Answer: (A)

Verified step by step guidance

1. Recall that two angles are complementary if the sum of their measures is \$90^\circ$.
2. Given one angle measures \$3^\circ\(, let the complementary angle be \)x^\circ$.
3. Set up the equation for complementary angles: \$3^\circ + x^\circ = 90^\circ$.
4. Solve for \(x\) by subtracting \$3^\circ\( from both sides: \)x = 90^\circ - 3^\circ$.
5. Calculate \(x\) to find the measure of the complementary angle.