Angle Names
This type of angle measures less than 90 degrees.
What is an acute angle?
The total sum of all interior angles in any triangle.
What is 180 degrees?
This is the total sum of the interior angles in any parallelogram.
What is 360 degrees?
This is the number of degrees in a straight line.
What is 180°?
This angle is exactly 180 degrees and looks like a straight line.
What is a straight angle?
This is the name for a triangle that contains one angle greater than 90 degrees.
What is an obtuse triangle?
If one angle in a parallelogram measures 70°, this is the measure of the angle next to it (adjacent)
What is 110 degrees?
If one angle on a straight line measures 50°, what is the measure of the adjacent angle?
What is 130°?
An angle that measures between 180° and 360° is known by this name.
What is a reflex angle?
If a triangle has two angles that measure 50° and 60°, this is the measure of the third angle.
What is 70 degrees?
This is always true about opposite angles in a parallelogram.
What is they are equal?
A straight line has three adjacent angles. Two of them are 48° and 66°. What is the third angle?
What is 66°?
This angle is larger than a right angle but smaller than a straight angle.
What is an obtuse angle?
This is the measure of the missing angle in a right triangle where one angle is 45°.
What is 45 degrees?
In a parallelogram, one angle measures 60°. List all four angles.
What are 60°, 120°, 60°, and 120°?
On a straight line, two angles are 37.5° and 59.5°. What is the missing angle?
What is 83°?
Listed from smallest to largest, these are the four main types of angles.
What are acute, right, obtuse, and reflex angles?
In an isosceles triangle, the unique angle is 22°. These are the measures of the other two angles.
What are 79° and 79°?
A parallelogram has one angle measuring 110°. List all four angles.
What are 110°, 70°, 110°, and 70°?
If two angles on a straight line are represented by (2x + 10)° and (3x + 20)°, solve for x.
What is x = 30°?
(2x + 10) + (3x + 20) = 180°, solve for x.