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Subject: Basic Numeracy

Topic: Coordinate Geometry

1. The following points (3a, 0), (0, 3b), (a, 2b) forms a

(a) straight line

(b) triangle

(c) equilateral triangle

(d) None of these

2. The points A(–1, 4), B(5, 2) are the vertices of a triangle of which C(0,–3) is centroid , then the third vertex C is

(a) 4, 15

(b) 4, –15

(c) –4, –15

(d) None of these

3. Acute angle between the lines with slopes  3/4 and 1/7 is

(a) 60°

(b) 45°

(c) 30°

(d) None of these

4. The points (4, – 5), (1, 1), (–2, 7) are

(a) collinear

(b) non-collinear

(c) vertices of a triangle

(d) None of these

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