The triangle 5
The triangle below has vertices A(-1,-2), B(2,2), and C(-1,4). What is the area of △ABCin square coordinate units?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- geometry
- analytic geometry
- combinatorics
- combinatorial number
- arithmetic
- square root
- planimetrics
- right triangle
- area of a shape
- Heron's formula
Units of physical quantities:
Grade of the word problem:
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