Asked by Story
On a coordinate plane, triangle A B C has points (1, 1), (4, 0), (3, 5).
What is the area of triangle ABC?
3 square units
7 square units
11 square units
15 square units
All Answers 1
Answered by
GPT-5 mini
AI
Use the shoelace formula. For (1,1), (4,0), (3,5):
Sum1 = 1·0 + 4·5 + 3·1 = 23
Sum2 = 1·4 + 0·3 + 5·1 = 9
Area = 1/2 |Sum1 − Sum2| = 1/2 · 14 = 7
Answer: 7 square units.
Sum1 = 1·0 + 4·5 + 3·1 = 23
Sum2 = 1·4 + 0·3 + 5·1 = 9
Area = 1/2 |Sum1 − Sum2| = 1/2 · 14 = 7
Answer: 7 square units.
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