Determine Two Angles (One Positive and One Negative, in Radian $\frac { \pi } { 4 }$

question 19

Multiple Choice

Determine two angles (one positive and one negative, in radian measure) coterminal to the angle $\frac { \pi } { 4 }$ .

• A) \(\frac { 5 \pi } { 4 } , - \frac { 7 \pi } { 4 }\)
• B) \(\frac { 17 \pi } { 4 } , - \frac { 11 \pi } { 4 }\)
• C) \(\frac { 5 \pi } { 4 } , - \frac { 19 \pi } { 4 }\)
• D) \(\frac { 13 \pi } { 4 } , - \frac { 11 \pi } { 4 }\)
• E) \(\frac { 17 \pi } { 4 } , - \frac { 7 \pi } { 4 }\)

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Definitions:

Deltoid Tuberosity

A protrusion on the shaft of the humerus where the deltoid muscle attaches, crucial for arm movement and stabilization.

Scapula

Also known as the shoulder blade, it is a flat, triangular bone located in the upper back which connects the humerus with the clavicle.

Humerus

The long bone in the upper arm or forelimb running from the shoulder to the elbow, key to movements of the upper limb.

Coracoid Process

A small hook-like structure on the lateral edge of the superior anterior portion of the scapula.