Everyday Mathematics: Geometry | Mathematics Olympiad for Class 3 PDF Download

Q1. You draw a line segment that is 5 cm long using a ruler. If you start at the 2 cm mark, where does it end?

(a) 5 cm
(b) 6 cm
(c) 7 cm
(d) 8 cm

Ans: (c) 7 cm

To draw a 5 cm line segment starting at 2 cm, add the length (5 cm) to the starting point: 2 + 5 = 7 cm.

Q2. A clock face is a circle. If you draw a line from the center to the 12, what is this line called?

(a) Diagonal
(b) Radius
(c) Edge
(d) Vertex

Ans: (b) Radius

In a circle, a line segment from the center to a point on the circle is a radius.

Q3. A rope tied to a pole lets a dog run in a circular path. What is the pole in geometry?

(a) Radius
(b) Center
(c) Edge
(d) Vertex

Ans: (b) Center

The pole is the center of the circular path, like point O in a circle, with the rope as the radius.

Q4. You measure a line segment from your desk to your chair, and it’s 3 cm long. If you start at the 1 cm mark on a ruler, where does it end?

(a) 3 cm
(b) 4 cm
(c) 5 cm
(d) 6 cm

Ans: (b) 4 cm

For a 3 cm line segment starting at 1 cm, add the length (3 cm) to the starting point: 1 + 3 = 4 cm.

Q5. You draw a square tablecloth with 4 equal sides. How many lines of symmetry does it have if folded to match perfectly?

(a) 1
(b) 2
(c) 3
(d) 4

Ans: (d) 4

A square has 4 lines of symmetry (vertical, horizontal, and two diagonals), as its halves match when folded.

Q6. A dice is a cube. How many faces does it have, and are they all the same shape?

(a) 6, all squares
(b) 6, all rectangles
(c) 8, all squares
(d) 8, all rectangles

Ans: (a) 6, all squares

A cube has 6 plane faces, all identical squares, 12 edges, and 8 vertices.

Q7. A cylindrical water bottle has 2 plane faces and 1 curved face. How many edges does it have?

(a) 0
(b) 1
(c) 2
(d) 3

Ans: (c) 2

 A cylinder has 2 plane faces (circles) and 1 curved face, with 2 edges where the plane faces meet the curved surface, and no vertices.

Q8. You measure a line segment from your book to your pencil, and it’s 7 cm. If you start at the 3 cm mark on a ruler, where does it end?

(a) 7 cm
(b) 8 cm
(c) 9 cm
(d) 10 cm

Ans: (d) 10 cm

For a 7 cm line segment starting at 3 cm, add the length (7 cm) to the starting point: 3 + 7 = 10 cm.

Q9. A kite is shaped like a square. How many lines of symmetry does it have if folded to match its halves?

(a) 1
(b) 2
(c) 3
(d) 4

Ans: (d) 4

A square has 4 lines of symmetry (vertical, horizontal, and two diagonals), as its halves match when folded.

Q10. You draw a triangle on a piece of paper with sides XY, YZ, and ZX. How many points do these line segments meet at altogether?

(a) 2
(b) 3
(c) 4
(d) 5

Ans: (b) 3

A triangle has 3 vertices (X, Y, Z), where the line segments XY, YZ, and ZX meet (at X, Y, and Z), as per the notes. Each vertex is a meeting point, totaling 3.