Medium
Find the area of the triangle formed by the points A(4, 0), B(0, 1) and C(0, 0).
Explanation
Explanation
Area = ½|x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂)| = ½|4(1-0) + 0(0-0) + 0(0-1)| = ½|4| = 2 sq units.
PRO TIP
Re-check your working by substituting the answer back into the original question.