# 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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Line slope calculator is helpful for basic calculations in analytic geometry. The coordinates of two points in the plane calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of the segment, intersections of the coordinate axes, etc.

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Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.

Would you like to compute the count of combinations?

See also our right triangle calculator.

See also our trigonometric triangle calculator.

#### 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
**numbers**- fractions

#### Units of physical quantities:

#### Grade of the word problem:

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