Define Variables for the Measures of Angles $30 ^ { \circ }$

question 54

Multiple Choice

Define variables for the measures of angles. Write equations based on the given facts as well as the characteristics of complementary angles and supplementary angles. Solve the given resulting system of equations by elimination.
a) Two angles are complementary. The measure of one angle is $30 ^ { \circ }$ larger than that of the other.
b) Two angles are supplementary. The measure of one angle is $30 ^ { \circ }$ larger than that of the other.

• A) a) \(55,35\)
• b) \(100,80\)
• B) a) \(60,30\)
• b) \(100,80\)
• C) a) \(60,30\)
• b) \(105,75\)
• D) a) \(50,40\)
• b) \(95,85\)
• E) a) \(55,35\)
• b) \(95,85\)

---

Definitions:

Foot

The lower extremity of the leg below the ankle, on which a person stands or walks.

Neonates

Newborn infants, particularly within the first 28 days of life, a critical period for adaptation outside the maternal environment.

Detect Movement

The ability or process of identifying and responding to changes in position or motion of objects.

Visual Tracking

The ability to smoothly and accurately follow the movement of an object with one's eyes.