CUET · MATHS · PYQ PAPER 2025
If the area of a triangle with vertices \((-3,0),(3,0)\) and \((0, k)\) is 9 sq. units, then \(k\) equals
- A \(0\)
- B \(-3\)
- C \(\pm 3\)
- D 3
Answer & Solution
Correct Answer
(C) \(\pm 3\)
Step-by-step Solution
Detailed explanation
Base \(b = 3 - (-3) = 6\) Height \(h = |k|\) Area \( = \frac{1}{2}bh \Rightarrow 9 = \frac{1}{2}(6)|k|\) \(9 = 3|k|\) \(k = \pm 3\)
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