Answered: Please answer and write correctly and…

Please answer and write correctly and neatly. The three vertices of a triangle are at A (7,-1,3), B (-3,3,-4) and C(-3,1, 5). Find: (use Dot product) a. RAB b. RAC c. The angle between ϴBAC

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter5: Similar Triangles

Section5.3: Proving Triangles Similar

Problem 4E: Classify as true or false: a If the midpoints of two sides of a triangle are joined, the triangle...

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Question

Please answer and write correctly and neatly.

The three vertices of a triangle are at A (7,-1,3), B (-3,3,-4) and C(-3,1, 5). Find: (use Dot product)
a. RAB
b. RAC
c. The angle between ϴBAC
d. The vector projection of RAB on RAC
e. The length of the perimeter of the triangle

Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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