Angles and Triangles Mastery Quiz

What type of angle measures exactly 90 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

An angle that measures more than 0 degrees but less than 90 degrees is called:

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Which type of angle measures more than 90 degrees but less than 180 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

A triangle with all three angles measuring less than 90 degrees is called:

• Equilateral triangle

• Isosceles triangle

• Acute triangle

• Obtuse triangle

What type of triangle has one angle that measures exactly 90 degrees?

• Equilateral triangle

• Right triangle

• Acute triangle

• Obtuse triangle

A triangle with one angle measuring more than 90 degrees is known as:

• Equilateral triangle

• Right triangle

• Acute triangle

• Obtuse triangle

Which type of triangle has all sides of equal length?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

In which triangle do exactly two sides have the same length?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

A triangle with all sides of different lengths is called:

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

Which statement is true for an equilateral triangle?

• All angles are acute.

• It has one right angle.

• It has one obtuse angle.

• All sides are of different lengths.