Samacheer Kalvi Class 5 Maths Solutions Term 2 Chapter 1 Geometry InText Questions

Try These (Text Book Page No.2)

Question 1. Tick (✔) the correct alternative
(i) The shortest distance between the points C and D is shown by the segment CD / the curve CD.Answer: The segment CD
In simple words: The shortest way to go from one point to another is always a straight line. This straight line is called a segment in geometry.

🎯 Exam Tip: Remember that a segment is always a straight line between two points, and it represents the shortest possible distance.

(ii) line PQ and line QP represent different lines / the same line.Answer: The same line
In simple words: A line is defined by the points on it. Whether you call it line PQ or line QP, it refers to the exact same straight path that goes on forever in both directions.

🎯 Exam Tip: The order of points does not change the identity of a line; line AB is the same as line BA.

(iii) point C lies on the ray AB / ray BD.Answer: Ray AB
In simple words: A ray starts at one point and goes on forever in one direction. Ray AB starts at A and goes through B. Since C is between A and B, it lies on ray AB.

🎯 Exam Tip: For a ray, the starting point is fixed, and it extends infinitely in one direction. Any point on the path after the starting point is part of that ray.

(iv) Segment MN has infinite / finite length.Answer: Finite length
In simple words: A segment has two clear end points, M and N. This means you can measure its exact length, so its length is limited or 'finite'. Lines and rays, however, go on forever.

🎯 Exam Tip: Segments have a definite start and end, unlike lines or rays, which extend indefinitely.

(v) Ray RT is a part / is not a part of the line TR.Answer: A part
In simple words: A line goes in both directions forever. A ray starts at one point and goes in only one direction forever. So, a ray is always a section or 'part' of a full line.

🎯 Exam Tip: Understand the definitions: a line has no endpoints, a ray has one endpoint and extends infinitely in one direction, and a segment has two endpoints.

Question 2. Write the type of the angle
(i)Answer: Right angle
In simple words: A right angle looks like a perfect corner, forming a square shape. It always measures exactly 90 degrees.

🎯 Exam Tip: Look for the small square symbol at the vertex of the angle; this always indicates a right angle.

(ii)Answer: Acute angle
In simple words: An acute angle is a small angle, meaning it is less than a right angle (less than 90 degrees). Think of the sharp point of a pencil.

🎯 Exam Tip: Compare the angle to a right angle: if it's smaller than a right angle, it's acute.

(iii)Answer: Straight angle
In simple words: A straight angle forms a perfectly flat line. It measures exactly 180 degrees, which is the same as two right angles put together.

🎯 Exam Tip: A straight angle always looks like a straight line, and its measure is always 180 degrees.

(iv)Answer: Obtuse angle
In simple words: An obtuse angle is wider than a right angle but not as wide as a straight line. It measures more than 90 degrees but less than 180 degrees.

🎯 Exam Tip: An obtuse angle will always appear 'blunt' or wider than a right angle when drawn. If it is wider than a right angle, it is obtuse.