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Mathematics for IGCSE & O level - Geometrical Terms (Section 5)

1
Which geometric term describes a surface with two dimensions?
Answer
(C)
A plane
2
If two triangles have angles of 35°, 75°, and 70°, what are the angles of a congruent triangle?
Answer
(D)
All of the above
3
What do you call the straight line from one corner of a shape to another (not a side)?
Answer
(C)
Diagonal
4
Which of the following is NOT a type of angle?
Answer
(C)
Parallel
5
What is the correct definition of a flat surface on a 3D shape?
Answer
(C)
A face
6
Which word describes a polygon with 8 sides?
Answer
(B)
Octagon
7
What is the definition of a point in geometry?
Answer
(C)
Has no dimensions
8
Which of the following is NOT a property of a parallelogram?
Answer
(D)
Diagonals are equal.
9
What is a line that touches a circle at only one point called?
Answer
(D)
Tangent
10
If two lines intersect forming four angles, and one angle is 90 degrees, what are the measures of the other three angles?
Answer
(A)
90, 90, 90
11
If two shapes are similar, what can be said about the ratio of their corresponding sides?
Answer
(B)
The sides are in proportion.
12
In the context of bearings, how are directions measured?
Answer
(A)
Clockwise from North
13
Which shape has five sides?
Answer
(C)
Pentagon
14
What do you call a polygon that has an angle greater than 180 degrees?
Answer
(C)
Concave polygon
15
Identify the key components of a 2-D shape.
Answer
(A)
Length and width
16
What are the defining characteristics of an acute angle?
Answer
(D)
Less than 90 degrees
17
What is the diameter of a circle if its radius is 5.7 cm?
Answer
(B)
11.4 cm
18
What is a prism?
Answer
(B)
A three-dimensional shape with two identical ends and rectangular sides
19
Which shapes are congruent?
Answer
(D)
F and H
20
What is a solid shape with a circular base and a curved surface called?
Answer
(B)
Cone
21
Which of the following are properties of a rectangle?
Answer
B
C
D
22
What kind of triangle has one right angle?
Answer
(D)
Right-angled
23
Which of the following describes an obtuse angle?
Answer
(C)
An angle between 90 and 180 degrees
24
Which of the following is an example of a 3-dimensional object?
Answer
(C)
A cube
25
What is a 'vertex' in the context of a 2-D shape?
Answer
(D)
A corner
26
Which of the shapes are similar?
Answer
(A)
A and B
27
An angle of more than 180 degrees but less than 360 degrees is called:
Answer
(C)
Reflex angle
28
Which of these are different types of triangles?
Answer
A
B
C
D
29
Which statement describes an isosceles triangle?
Answer
(B)
Two sides are equal
30
What is a net in relation to a 3D shape?
Answer
(B)
A 2D shape that can be folded to make a 3D shape
31
Which of the following statements best describes congruent shapes?
Answer
(C)
They are exactly the same size and shape.
32
How many dimensions does a line have?
Answer
(B)
1
33
Which of the following shapes is a regular polygon?
Answer
(C)
A square
34
What is the difference between congruent and similar shapes?
Answer
(C)
Congruent shapes have the same size and shape, while similar shapes have the same angles.
35
What is a polygon called if all of its sides are the same length and all of its interior angles are the same size?
Answer
(B)
Regular polygon
36
Which 3-D shapes are prisms?
Answer
A
B
37
Which of the following is the definition of a right angle?
Answer
(B)
Equal to 90 degrees
38
What type of angle is formed when two lines intersect?
Answer
(D)
Vertical
39
Which of the following can be made from a net?
Answer
B
C
D
40
What type of triangle has all sides of equal length?
Answer
(C)
Equilateral
41
Which of the following is true about the sides of a parallelogram?
Answer
(C)
Opposite sides are parallel and equal.
42
What is a three-sided polygon called?
Answer
(C)
Triangle
43
Which of the following statements is true regarding parallel lines?
Answer
(B)
They never intersect.
44
Which quadrilaterals have diagonals that bisect each other?
Answer
A
B
D
45
A sphere has:
Answer
(B)
Curved surface
46
What is the term for a line that intersects another line at a 90-degree angle?
Answer
(B)
Perpendicular
47
A three-dimensional shape that has a flat base and triangular sides that meet at a common vertex is called:
Answer
(B)
A pyramid
48
Which is an example of a 2-dimensional object?
Answer
(C)
Circle
49
A chord divides a circle into two segments. Which segment is the smaller one?
Answer
(B)
Minor segment
50
Which of the following is NOT a quadrilateral?
Answer
(C)
Pentagon