Triangles and Quadrilaterals

Which of the following figures has parallel lines?

• Circle

• Triangle

• Square

• Pentagon

Which of the following figures has perpendicular lines?

• Trapezoid

• Rectangle

• Rhombus

• Hexagon

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

• Acute triangle

• Equilateral triangle

• Obtuse triangle

• Right triangle

Which type of triangle has all angles less than 90 degrees?

• Acute triangle

• Obtuse triangle

• Right triangle

• Scalene triangle

Which type of triangle has one angle greater than 90 degrees?

• Right triangle

• Acute triangle

• Equilateral triangle

• Obtuse triangle

Which of the following figures has no sides of equal length?

• Square

• Rectangle

• Rhombus

• Scalene triangle

Which type of quadrilateral has only one pair of parallel sides?

• Square

• Rectangle

• Trapezoid

• Rhombus

Which of the following figures has all sides of equal length?

• Rectangle

• Square

• Trapezoid

• Scalene triangle

Which type of quadrilateral has two pairs of parallel sides?

• Trapezoid

• Rectangle

• Kite

• Scalene triangle

Which type of triangle has two sides of equal length?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle