Use Vectors to Find the Measure of the Angle at Vertex

question 119

Multiple Choice

Use vectors to find the measure of the angle at vertex B of triangle ABC, when $A = ( 5,4 )$ , $B = ( - 2,4 )$ , and $C = ( - 3 , - 4 )$ .Round answer to two decimal places.

• A)95.94°
• B)98.47°
• C)97.13°
• D)95.04°
• E)99.65°

Understand the role and timing of handouts in enhancing the presentation effectiveness.

Understand and employ strategies to recover from presentation mishaps.

Realize the significance of preparing both sides of an issue when presenting to a neutral audience.

Develop strategies to overcome stage fright and enhance presentation delivery.

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