Mathematics for IGCSE & O level - Angles (Section 3)
1
What is the measure of a right angle?
Хариулт
(C)
90°
2
If two lines intersect, forming angles a, b, c, and d, which angles are vertically opposite angles?
Хариулт
B
D
3
In a parallelogram, what is the relationship between opposite sides?
Хариулт
(A)
They are equal and parallel.
4
What is the sum of the exterior angles of a convex polygon?
Хариулт
(C)
360°
5
If the interior angles of a polygon add up to 1080°, how many sides does the polygon have?
Хариулт
(C)
8
6
Which of the following is a property of an isosceles triangle?
Хариулт
(C)
Two sides are equal.
7
If a transversal intersects two parallel lines, which of the following angles are equal?
Хариулт
A
B
D
8
What is the measure of an angle that forms a complete circle?
Хариулт
(D)
360°
9
If two angles form a linear pair, what is the sum of their measures?
Хариулт
(C)
180°
10
What is the measure of a straight angle?
Хариулт
(C)
180°
11
What kind of triangle has no equal sides or angles?
Хариулт
(B)
Scalene
12
What is the sum of the interior angles in a regular octagon?
Хариулт
(C)
1080°
13
What do we call angles that are next to each other, sharing a common vertex and side?
Хариулт
(D)
Adjacent angles
14
If the interior angle of a regular polygon is 150°, how many sides does it have?
Хариулт
(D)
12
15
Which of these pairs of angles add up to 180°?
Хариулт
(C)
Supplementary Angles
16
How many degrees are in an obtuse angle?
Хариулт
(C)
More than 90° but less than 180°
17
If an angle is 110°, what is its supplementary angle?
Хариулт
(A)
70°
18
Which of the following statements is true about vertically opposite angles?
Хариулт
(D)
They are equal.
19
If two angles are complementary, what is the sum of their measures?
Хариулт
(A)
90°
20
Which of the following describes a scalene triangle?
Хариулт
(D)
No sides are equal.
21
What is the measure of each interior angle of an equilateral triangle?
Хариулт
(C)
60°
22
What is the measure of an angle that forms a complete revolution?
Хариулт
(D)
360°
23
What must be true of the two acute angles in a right triangle?
Хариулт
(B)
They are complementary.
24
If two angles are supplementary and one angle measures 60 degrees, what is the measure of the other angle?
Хариулт
(C)
120°
25
What is the term for two angles that share a vertex and a common side?
Хариулт
(D)
Adjacent angles
26
In a parallelogram, the opposite sides are:
Хариулт
(A)
Equal and parallel
27
In a triangle, the angles are represented by x, 2x, and 3x. What is the value of x?
Хариулт
(A)
30°
28
If two lines intersect, and one angle is 40 degrees, what is the measure of its vertically opposite angle?
Хариулт
(A)
40°
29
If an angle and its complement are equal, what is the measure of the angle?
Хариулт
(B)
45°
30
What is the sum of interior angles of a triangle?
Хариулт
(B)
180°
31
In a regular polygon, if each interior angle is 135°, how many sides does the polygon have?
Хариулт
(C)
10
32
What's the sum of exterior angles in a quadrilateral?
Хариулт
(D)
360°
33
If a quadrilateral has angles of 60°, 120°, and 70°, what is the value of the fourth angle?
Хариулт
(D)
120°
34
What is the sum of the interior angles of a quadrilateral?
Хариулт
(C)
360°
35
If a line segment is extended to make a straight line, what is the measurement of the angle created?
Хариулт
(C)
180°
36
If two parallel lines are cut by a transversal, and one of the interior angles on the same side of the transversal is 110°, what is the measure of the other interior angle on the same side?
Хариулт
(A)
70°
37
What is the sum of the interior angles of a polygon with 5 sides (a pentagon)?
Хариулт
(C)
540°
38
In a triangle, the angles are in the ratio 2:3:4. What is the largest angle?
Хариулт
(C)
80°
39
What is the relationship between corresponding angles formed by a transversal and two parallel lines?
Хариулт
(C)
Congruent
40
Which of these describes a regular polygon?
Хариулт
(C)
All sides and angles are equal
41
Which type of triangle has all three sides equal?
Хариулт
(C)
Equilateral
42
In a triangle with angles x, 2x, and 3x, what kind of triangle is it?
Хариулт
(C)
Right
43
What is always true about vertically opposite angles?
Хариулт
(C)
They are equal
44
If the interior angle of a regular polygon is 108°, how many sides does the polygon have?
Хариулт
(B)
5
45
What type of triangle has three equal sides and three equal angles?
Хариулт
(D)
Equilateral
46
If a line segment divides an angle into two equal parts, what is that line segment called?
Хариулт
(C)
Bisector
47
What is the sum of the interior angles in a triangle?
Хариулт
(B)
180°
48
What is the sum of the exterior angles of a triangle?
Хариулт
(D)
360°
49
Which of the following are properties of parallel lines cut by a transversal?
Хариулт
A
B
C
50
Which of the following statements is true about the exterior angle of a triangle?
Хариулт
(D)
It is equal to the sum of the two opposite interior angles.
