The Measures of Two Angles of ABC (Shown in the Illustration)

question 61

Multiple Choice

The measures of two angles of ABC (shown in the illustration) are given. Find the measure of the third angle, if $m ( \angle A ) = 51.08 ^ { \circ }$  and $m ( \angle B ) = 56.46 ^ { \circ }$ .

• A) \(71.46 ^ { \circ }\)
• B) \(72.46 ^ { \circ }\)
• C) \(82.47 ^ { \circ }\)
• D) \(72.57 ^ { \circ }\)
• E) \(72.36 ^ { \circ }\)

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Definitions:

Efferent Neurons

Nerve cells that carry neural impulses away from the central nervous system to effectors such as muscles and glands.

Motor Neurons

Nerve cells that transmit signals from the brain and spinal cord to muscles, initiating movement.

Pineal Gland

A small, pinecone-shaped endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Melatonin

A hormone made by the pineal gland that regulates sleep and wakefulness.