Geometry

What type of angle is shown?

• Acute Angle
• Obtuse Angle
• Right Angle
• Straight Angle

Classify the triangle by its angles.

• Acute Triangle
• Obtuse Triangle
• Right Triangle
• Equilateral Triangle

Classify the triangle by its angles and sides. 

• Obtuse Right Triangle
• Acute Scalene Triangle
• Acute Isosceles Triangle
• Obtuse Scalene Triangle

Quadrilaterals always have

• 4 sides

• 2 sets of parallel lines

• 4 right angles

• 4 equal sides

Which of these are all quadrilaterals?

• rectangle, square, triangle, trapezoid

• rectangle, trapezoid, square, parallelogram

• square, trapezoid, circle, rectangle

• pentagon, square, rectangle, parallelogram

Two lines that intersect and form right angles are called

• parallel lines

• intersecting lines

• adjacent lines

• perpendicular lines

What term best defines these lines?

• parallel lines

• straight lines

• perpendicular lines

• intersecting lines

Which angle has exactly 90 degrees?

• acute angle

• right angle

• obtuse angle

• reflex angle

Which angle has less than 90 degrees?

• acute angle

• right angle

• obtuse angle

• reflex angle

Which angle is greater than 90 degrees but less than 180 degrees?

• acute angle

• right angle

• obtuse angle

• straight angle