Geometry Must Knows

What is the sum of complementary angles?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

What is the sum of supplementary angles?

• 90 degrees

• 180 degrees

• 360 degrees

• 270 degrees

What describes a linear pair of angles?

• Two angles that are not adjacent

• Two angles whose sum is 90 degrees

• A pair of adjacent angles whose non-common sides are opposite rays

• Two angles that share a common vertex only

What are vertical angles?

• Angles that share a common side

• Two nonadjacent angles formed by two intersecting lines

• Two angles that add up to 180 degrees

• A pair of adjacent angles

What defines adjacent angles?

• Angles that add up to 180 degrees

• Angles that have a common side and a common vertex

• Two angles whose sum is 90 degrees

• Angles formed by two non-intersecting lines

What type of triangle has at least two congruent sides?

• Scalene triangle

• Equilateral triangle

• Isosceles triangle

• Right triangle

Which triangle has no congruent sides?

• Isosceles triangle

• Equilateral triangle

• Scalene triangle

• Right triangle

How many congruent sides does an equilateral triangle have?

• One

• Two

• Three

• None

What is the range of degrees for an obtuse angle?

• Less than 90 degrees

• 90 to 180 degrees

• More than 180 degrees

• Exactly 90 degrees

What is the definition of an acute angle?

• An angle that measures exactly 90 degrees

• An angle that measures more than 180 degrees

• An angle that measures less than 90 degrees

• An angle that measures between 90 and 180 degrees