Exploring Triangles and Angles

What is an equilateral triangle?

• A triangle with two sides equal and one side longer.

• A triangle with one angle greater than 90 degrees.

• An equilateral triangle is a triangle with all sides and angles equal.

• A triangle with all sides different lengths.

How many equal sides does an equilateral triangle have?

• 5

• 4

• 3

• 2

What type of triangle has two equal sides?

• Right triangle

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

Define an isosceles triangle.

• An isosceles triangle has at least one side longer than the others.

• An isosceles triangle has three equal angles.

• An isosceles triangle has all sides of different lengths.

• An isosceles triangle has at least two sides that are equal in length.

What is a scalene triangle?

• A scalene triangle has all angles equal.

• A scalene triangle has at least two sides of equal length.

• A scalene triangle is a triangle with one side longer than the others.

• A scalene triangle is a triangle with all sides of different lengths.

How many equal angles does an equilateral triangle have?

• 4

• 2

• 3

• 5

What happens to the angles in an isosceles triangle?

• The two angles are always obtuse.

• The angles sum up to 180 degrees.

• All angles are equal.

• The two base angles are equal.

Can a triangle have all angles greater than 90 degrees?

• It is possible for a triangle to have two angles greater than 90 degrees.

• A triangle can have one angle greater than 90 degrees and two angles less than 90 degrees.

• Yes, a triangle can have all angles greater than 90 degrees.

• No, a triangle cannot have all angles greater than 90 degrees.

What is the sum of the angles in any triangle?

• 120 degrees

• 90 degrees

• 180 degrees

• 360 degrees

If one angle in a triangle is 90 degrees, what type of triangle is it?

• Scalene triangle

• Obtuse triangle

• Acute triangle

• Right triangle