Exploring Angles of Triangles in Geometry

What type of triangle has no congruent sides?

• Isosceles

• Equilateral

• Scalene

• Right

If a triangle has two congruent sides, what is it called?

• Acute

• Scalene

• Equilateral

• Isosceles

What is the measure of each angle in an equilateral triangle?

• 120 degrees

• 90 degrees

• 45 degrees

• 60 degrees

What type of triangle has one right angle?

• Obtuse

• Right

• Acute

• Equilateral

In the example problem, what type of triangle is OPQ classified as by its sides?

• Right

• Scalene

• Equilateral

• Isosceles

How do you determine if a triangle is a right triangle using slopes?

• Check if the slopes are equal

• Check if the slopes are zero

• Check if the slopes are negative reciprocals

• Check if the slopes are positive reciprocals

What is the sum of the interior angles of a triangle?

• 270 degrees

• 180 degrees

• 360 degrees

• 90 degrees

What is the measure of an exterior angle of a triangle equal to?

• The difference between the measures of the two non-adjacent interior angles

• The difference between the measures of the two adjacent interior angles

• The sum of the measures of the two non-adjacent interior angles

• The sum of the measures of the two adjacent interior angles

If one acute angle in a right triangle is 30 degrees, what is the measure of the other acute angle?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

What is the measure of angle JKM if x = 75 degrees and the exterior angle is given by 2x - 5?

• 155 degrees

• 140 degrees

• 145 degrees

• 150 degrees