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