NCERT Coordinate Geometry MCQs – Area of Triangle Using Coordinates
CBSE Class 10 Mathematics – Chapter 7: Coordinate Geometry
Title: NCERT Coordinate Geometry MCQs – Area of Triangle Using Coordinates
Prepared for: CBSE Board Examination (As per Latest NCERT Curriculum)
Q1. Area of triangle with vertices (0,0), (4,0), (0,3) is:
Correct Answer: A. 6 sq units
Right triangle with base=4, height=3
Area = ½ × 4 × 3 = 6.
Q2. Area of triangle with vertices (1,1), (4,1), (1,5) is:
Correct Answer: A. 6
Base = 3, height = 4
Area = ½ × 3 × 4 = 6.
Q3. Formula for area using coordinates is:
Correct Answer: A
Standard determinant formula for area of triangle.
Q4. If area equals zero, points are:
Correct Answer: B
Area zero implies all three points lie on a straight line.
Q5. Area of triangle (0,0),(2,0),(0,2):
Correct Answer: A
½×2×2=2.
Q6. Points (1,2),(3,6),(5,10) are:
Correct Answer: A
Area formula gives zero → collinear.
Q7. Area of triangle (2,3),(4,7),(6,3):
Correct Answer: C
Using formula → 8 sq units.
Q8. Area depends on:
Correct Answer: B
Area derived from determinant absolute value.
Q9. If area is negative before absolute value, final area is:
Correct Answer: C
Absolute value taken.
Q10. Area of triangle (0,0),(5,0),(2,4):
Correct Answer: B
½×5×4=10.
Q11. If two vertices same, area is:
Correct Answer: B
No triangle formed.
Q12. Points (0,2),(4,2),(2,6) area:
Correct Answer: C
½×4×4=8.
Q13. Area formula derived using:
Correct Answer: B
Determinant method.
Q14. Collinearity test uses:
Correct Answer: B
Area zero ⇒ collinear.
Q15. Area of (1,1),(4,1),(2,5):
Correct Answer: A
½×3×4=6.
Q16. Absolute value is used because:
Correct Answer: A
Area always positive.
Q17. Area of (0,0),(3,0),(3,4):
Correct Answer: A
½×3×4=6.
Q18. If three points lie on same line, determinant equals:
Correct Answer: B
Area zero ⇒ determinant zero.
Q19. Area of (2,2),(6,2),(4,6):
Correct Answer: B
½×4×4=8.
Q20. Area formula valid for:
Correct Answer: A
Works for all triangles using coordinates.
