Q1: Which type of triangle has two sides of equal length?
(a) Equilateral triangle
(b) Isosceles triangle
(c) Scalene triangle
(d) Rightangled triangle
Q2: How many bases does a trapezium have?
(a) 1
(b) 2
(c) 3
(d) 4
Q3: What is the measure of each angle in an equilateral triangle?
(a) 60°
(b) 90°
(c) 120°
(d) 180°
Q4: What type of angle is exactly 180°?
(a) Acute angle
(b) Right angle
(c) Straight angle
(d) Reflex angle
Q5: Which type of triangle has all sides of different lengths?
(a) Equilateral triangle
(b) Isosceles triangle
(c) Scalene triangle
(d) Rightangled triangle
Q6: Identify the following triangles according to the measurement of sides and angles given. Also mention the type of triangle:
Q7: Each angle of a rectangle is a ____________ angle.
Q8: ____________ sides of a rhombus are of equal length.
Q9: In a ____________, there is only one pair of parallel sides.
Q10: The ____________ sides of a rectangle are equal in length.
Q11: A rhombus with four right anlges is called a ____________.
Q12: The polygon with least number of sides is ____________.
Q13: Complete the following table:
(One is done as examplesphere)
Shape  Example  Number of faces  Number of vertices  Number of Edges  
(1)  Cuboid  —  —  —  — 
(2)  Cube  —  —  —  — 
(3)  Triangular pyramid  —  —  —  — 
(4)  Sphere  Football  No face  No vertex  No edge 
Q14: In the given figure, name the following angles as acute, obtuse, right, straight or reflex.
(a) ∠QOY
(b) ∠YOP
(c) ∠ROX
(d) ∠QOX
(e) ∠POQ
Q15: Match the column B with A and C:
A  B  C 
(a) Straight angle  (i) An angle whose measure is less than 90°.  (f) One fourth of a revolution. 
(b) Right angle  (ii) An angle whose measure is between 90° and 180°.  (g) Half of a revolution. 
(c) Acute angle  (iii) An angle whose measure is 180°.  (h) More than half a revolution 
(d) Obtuse angle  (iv) An angle whose measure is 90°.  (i) Less than onefourth of a revolution. 
(e) Reflex angle  (v) An angle whose measure is between 180° and 360°.  (j) Between ¼ and ½ of a revolution. 
For example (a) → (iii) → (g)
Q16: A sailor is rowing a boat due north. In which direction will he be rowing if he turns it through (i) a straight angle (ii) a complete angle
Q17: You are standing in a classroom facing north. In what direction will you be facing after making a quarter turn in clockwise direction?
Q18: Write five capital letters of the English alphabet which show perpendicular lines/line segments.
Q19: Number of right angles turned by the hour hand of a clock when it goes from 3 to 6.
Q20: How many line segments are used in making a triangle?
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1. What are elementary shapes? 
2. How are elementary shapes used in everyday life? 
3. How can elementary shapes be classified? 
4. What is the importance of understanding elementary shapes? 
5. Can elementary shapes be combined to create new shapes? 

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