Triangle Quiz

What is an isosceles triangle?

• A triangle with one angle exactly 90 degrees

• A triangle with all angles less than 90 degrees

• A triangle with at least two sides the same length

• A triangle with all sides the same length

How many sides does a triangle have?

• Five

• Four

• Three

• Two

What is true about an equilateral triangle?

• It has all sides the same length

• It has all sides of different lengths

• It has two angles that are the same

• It has one angle more than 90 degrees

What is a scalene triangle?

• A triangle with one angle exactly 90 degrees

• A triangle with all sides of different lengths

• A triangle with all sides the same length

• A triangle with at least two sides the same length

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

• 90 degrees

• 120 degrees

• 60 degrees

• 45 degrees

Which type of triangle has one angle that is exactly 90 degrees?

• Acute triangle

• Obtuse triangle

• Right triangle

• Scalene triangle

What do you call a triangle where all angles are less than 90 degrees?

• Acute triangle

• Obtuse triangle

• Scalene triangle

• Right triangle

How can you identify an isosceles triangle?

• It has at least two sides that are the same length

• It has all sides of different lengths

• It has all angles equal

• It has one angle that is more than 90 degrees

What is the first step in sketching an isosceles triangle?

• Draw one side of the triangle

• Label all sides and angles

• Draw a straight line for the base

• Draw three sides of different lengths

Which triangle has all angles different?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle