Angles - JSS1 Mathematics Past Questions and Answers - page 2
∠A and ∠B are adjacent angles. If ∠A = 60°, what is the measure of ∠B?
30°
60°
120°
180°
Which angles are formed by two intersecting lines and are directly across from each other?
Alternate angles
Corresponding angles
Vertical angles
Adjacent angles
What is the measure of a full rotation in degrees?
90°
180°
270°
360°
∠1 and ∠2 are corresponding angles. If ∠1 = 70°, what is the measure of ∠2?
70°
110°
140°
180°
What type of angle is larger than a straight angle?
Acute angle
Right angle
Obtuse angle
Reflex angle
If angle A is a right angle measuring 90°, what is the measure of angle B if they are adjacent angles?
Angle B measures 90° (adjacent angles on a straight line sum up to 180°).
Two angles are supplementary. If one angle measures 120°, what is the measure of the other angle?
The other angle measures 60° (supplementary angles add up to 180°).
In a quadrilateral, the measures of three angles are 80°, 100°, and 120°. What is the measure of the fourth angle?
The measure of the fourth angle is 60° (sum of angles in a quadrilateral is 360°).
If two lines are parallel and a transversal intersects them, forming an angle of 110°, what is the measure of the corresponding angle on the opposite side of the transversal?
The corresponding angle measures 110° (corresponding angles are equal when lines are parallel).
An angle measures 45° less than its complement. What is the measure of the angle?
The angle measures 45° (complementary angles add up to 90°).