Vidaara.orgClass 9 · Mathematics
CodeVID-M09-05-EUC-01
Euclid’s Approach to Geometry — Assignment
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
- Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions
5 × 1 = 5 marks
1.
Euclid's treatise is called:
- A.Principia
- B.The Elements
- C.Almagest
- D.Sphere
2.
A point has:
- A.length
- B.no part
- C.area
- D.volume
3.
A line has length but no:
- A.endpoints
- B.breadth
- C.points
- D.direction
4.
Euclid built geometry from:
- A.experiments
- B.axioms and postulates
- C.measurements
- D.guesses
5.
A solid has how many dimensions?
- A.$1$
- B.$2$
- C.$3$
- D.$0$
Section B — Short Answer (2 marks)
4 × 2 = 8 marks
6.
How many dimensions does a point have?
7.
How many dimensions does a line have?
8.
How many dimensions does a surface have?
9.
Name Euclid's famous book.
Section C — Short Answer (3 marks)
4 × 3 = 12 marks
10.
State Euclid's definition of a point.
11.
State Euclid's definition of a line.
12.
How many dimensions does a solid have?
13.
What forms the boundaries of a surface?
Section D — Long Answer (5 marks)
2 × 5 = 10 marks
14.
Distinguish between an axiom and a postulate as used by Euclid, with one example of each.
15.
State what bounds solids, surfaces and lines respectively.
Answer Key
Section A — Multiple Choice Questions
- (B) The Elements
- (B) no part
- (B) breadth
- (B) axioms and postulates
- (C) $3$
Section B — Short Answer (2 marks)
- $0$.
- $1$.
- $2$.
- The Elements.
Section C — Short Answer (3 marks)
- That which has no part.
- Breadthless length.
- $3$.
- Lines (or curves).
Section D — Long Answer (5 marks)
- Axiom = common notion (general truth, e.g. "things equal to the same thing are equal"); postulate = a geometric assumption (e.g. "a line can be drawn between any two points").
- Solids are bounded by surfaces, surfaces by curves/lines, and lines by points.
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