Find the area of a triangle whose coordinates are A (1,1), B (3,-3), C (5,3)

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Find the area of a triangle whose coordinates are A (1,1), B (3,-3), C (5,3). 
a. 15
b. 20
c. 5
d. 10
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