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Points (2,3), (-1,0) and (2,-4) are the vertices of a triangle. Its area is:

Class 10Area of a Triangle (Coordinates)Geometry — Coordinates

A10.5 sq units
B21 sq units
C9 sq units
D12 sq units

Step-by-Step Solution

Area =

\frac{1}{2} ∣2 (0 - (- 4)) + (- 1) (- 4 - 3) + 2 (3 - 0) ∣ = \frac{1}{2} ∣8 + 7 + 6∣ = \frac{1}{2}

(21) = 10.5 sq units.

Answer: A) 10.5 sq units

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