NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 2: Geometry - Problems and SolutionsQuestion 70
Class 6 - Mathematics - Unit 2: Geometry - Problems and Solutions
Question. 70
In Fig. 2.45 how many line segments are there? Name them.
Answer:
6 — AB, AC, AD, BC, BD, CD.
Detailed Answer with Explanation:
Step 1: There are four points: A, B, C, D.
Step 2: A line segment is formed by choosing any two different points.
Step 3: List all pairs (each pair gives one segment):
- AB, AC, AD
- BC, BD
- CD
Step 4: So the segments are: AB, AC, AD, BC, BD, CD.
Count check (optional):
( inom{4}{2} )
( = dfrac{4 imes 3}{2 imes 1} )
( = 6 )
Answer: 6 line segments.