Geometry and Angles for 4th Grade

Identify the type of angle shown: 90 degrees

• Straight angle

• Acute angle

• Right angle

• Obtuse angle

What is the measure of the angle shown: 45 degrees

• 90 degrees

• 60 degrees

• 30 degrees

• 45 degrees

Classify the triangle by angles: 60°, 60°, 60°

• Scalene

• Isosceles

• Equilateral

• Right

Identify the type of line relationship: Two lines that never intersect

• Curved

• Perpendicular

• Parallel

• Intersecting

What are the properties of a parallelogram?

• Opposite sides are parallel and equal in length, opposite angles are equal, and consecutive angles are supplementary.

• Opposite sides are perpendicular

• All angles are equal

• Opposite sides are not parallel

Identify the type of angle shown: 180 degrees

• Reflex angle

• Straight angle

• Obtuse angle

• Acute angle

Measure the angle using a protractor: 30 degrees

• 45 degrees

• 30 degrees

• 20 degrees

• 60 degrees

Classify the triangle by angles: 90°, 45°, 45°

• Obtuse Triangle

• Equilateral Triangle

• Scalene Triangle

• Right Isosceles Triangle

Identify the type of line relationship: Two lines that intersect at a right angle

• Perpendicular

• Diagonal

• Curved

• Parallel

What are the properties of a rectangle?

• Four right angles and adjacent sides are equal in length.

• Four right angles and opposite sides are equal in length.

• Two right angles and all sides are equal in length.

• Three right angles and opposite sides are equal in length.