1. If we add an acute angle and a right angle then resulting angle will
be a …………… angle.
2. If a person stand facing north and move by 90 clockwise and then
180 anticlockwise then find the direction he is facing now.
3. (i) Find the value of angle made by an hour clock in 5 hours from its
starting point.
(ii) This angle will be …………… (Acute/Obtuse/Right)
4. An equilateral triangle is always a …………… (Acute/Obtuse/Right)
angle triangle.
5. If we break a protractor in 8 equal parts then the maximum angle
which we can measure from each of its part is …………… degrees.
6. Letter …….. will be best describe the perpendicular (T/ H/L/
)
7. Octagon, Pentagon and hexagon can be made by ……, …… and ……
line segments respectively.
8. A quadrilateral with one pair of parallel lines is called……….
9. Write the major difference between a cube and a cuboid.
10. Define polygon and draw its different types.
11. Draw a rhombus and write differences between rhombus and
square.
12.
Define this structure.
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13. Half of an Obtuse angle will be ………… (Acute/Right/Obtuse) angle
And its value will be ………… (Less than/ greater than) 90
14. State true or false:
(a) An acute angle triangle will have at least one right angle
(b) In a triangle there must be two acute angles.
15. Find the acute angle in right angled isosceles triangle.
16. If 3 angles of a quadrilateral are 65 , 125
fourth angle.
and 45 then find the
17. A triangular pyramid has a triangle as its base. It is also known as
……… and has ……… edges.
18. Which among the following is a polygon?
19. Draw 2 convex and 2 concave quadrilaterals
20. Give an example of acute angle triangle and square with exact value
of its angles.
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Answers :
1. Obtuse
2. West
3. (i) 150
(ii) Obtuse
4. Acute
5. 22.5
6.
7. 8, 5, 6
8. Trapezium
9. All faces in cubes are same but not in cuboids
10. Closed shape made by more than 2 lines segments is called a
polygon.
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11.
Rhombus
Square
Square has 4 equal sides and all angles are 90 whereas in rhombus all
sides and angles are equal but angles are not necessarily 90
12. Cylinder
A cylinder has no straight edges and has 2 circular bases.
13. Acute, less than
14. (a) False
(b) True
15. 45
16. 125
17. Tetrahedron, 6
18. (1) No
(2) Yes
(3) Yes
(4) No
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19.
20. Triangle
Square
A
B
C
,
,
,
,
D
,
,
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