Class 9 Maths: Ch 5 – Introduction to Euclid’s Geometry – Extra Questions with Answers
Q. 1 How many dimensions does a line segment have?
Check Solution
Ans: B
Solution: A line segment is a one-dimensional object.
Answer: 1
Q. 2 The faces of a triangular pyramid are all ______ .
Check Solution
Ans: A
Solution: The faces of a triangular pyramid are all triangles.
Answer: triangles
Q. 3 The locus of a point equidistant from the points (1, 3) and (5, 3) intersects the line y = 1. What is the x-coordinate of the intersection point?
Check Solution
Ans: B
Solution: The locus of points equidistant from (1, 3) and (5, 3) is the perpendicular bisector of the segment connecting them. The midpoint is ((1+5)/2, (3+3)/2) = (3, 3). The segment is horizontal, so the perpendicular bisector is the vertical line x = 3. The intersection with y = 1 is (3, 1).
Answer: 3
Q. 4 What is the defining characteristic of a theorem that distinguishes it from a postulate?
Check Solution
Ans: A
Solution:
Answer: Theorems are proven, while postulates are assumed to be true.
Next Topic: Lines and Angles
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