Question

the measure of an angle is 77\\(^{\circ}\\). what is the measure of its complementary angle?

Explanation:

Define complementary angles

Using the Complementary Angles knowledge point

$$ \theta_1 + \theta_2 = 90^\circ $$

Set up the equation

Using the Complementary Angles knowledge point

$$ 77^\circ + x = 90^\circ $$

Solve for the unknown angle

Using the Complementary Angles knowledge point

$$ x = 90^\circ - 77^\circ = 13^\circ $$

Answer:

The measure of an angle is \(77^\circ\). What is the measure of its complementary angle?
<blank>13</blank>\(^\circ\)