CUET · MATHS · PYQ PAPER 2023
Area of the triangle formed by the points (-2, 1), (-3, 2) and (-4, 3) is:
- A 2 sq.units
- B 4 sq.units
- C — 4 sq.units
- D 0 sq.units
Answer & Solution
Correct Answer
(D) 0 sq.units
Step-by-step Solution
Detailed explanation
Area \( = \frac{1}{2} |x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)| \) Area \( = \frac{1}{2} |(-2)(2 - 3) + (-3)(3 - 1) + (-4)(1 - 2)| = \frac{1}{2} |2 - 6 + 4| \) Area \( = \frac{1}{2} |0| = 0 \text{ sq.units} \)
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