Angles
An angle that is less than 90 degrees
Acute angle
A pair of angles that add up to 90 degrees
Complementary angles
A triangle with three acute angles
Acute triangle
A 3D figure with one circular base
Cone
Angle A and Angle B are complementary angles. If A = 36 degrees, what is Angle B?
54 degrees
An angle that is exactly 90 degrees
Right angle
A pair of angles that add up to 180 degrees
Supplementary angles
A triangle with two acute angles and one obtuse angle
Obtuse triangle
A 3D figure with two circular bases
Cylinder
Angle A and Angle B are supplementary angles. If Angle A = 152 degrees, what is angle B?
28 degrees
An angle that is greater than 90 degrees and less than 180 degrees
Obtuse angle
A pair of angles that share a side and a vertex
Adjacent angles
A triangle with two acute angles and one right angle
Right triangle
A 3D figure with one 5-sided base
Pentagonal Pyramid
Angle A and Angle B are vertical angles. If Angle A = 140 degrees and Angle B = (2x + 4) degrees, find x.
x = 18
An angle that is exactly 180 degrees
Straight angle
Opposite angles where two lines intersect
Vertical angles
A triangle with at least two congruent sides
Isosceles triangle
A 3D figure with two parallel 3-sided bases
Triangular prism
Angle A and Angle B are complementary angles. If Angle A = 62 degrees and Angle B = 7x degrees, find x.
An angle that is greater than 180 degrees and less than 360 degrees
Reflex angle
How many pairs of vertical angles are formed by two intersecting lines?
Two pairs
A triangle with no congruent sides
Scalene triangle
The number of edges on a rectangular prism
12
Angle A and Angle B are both complementary and congruent. What is the measure of each angle?
45 degrees