Eureka Math Grade 4 Module 4 Mid Module Review

What is a supplementary angle?

• Two angles whose measures add up to 90 degrees.

• Two angles whose measures add up to 180 degrees.

• Two angles that are adjacent to each other.

• Two angles that are equal in measure.

What is a polygon?

• A closed figure formed by three or more line segments.

• A type of triangle with equal sides.

• A figure with only straight lines and no angles.

• A three-dimensional shape with curved surfaces.

What is the sum of angles in a triangle?

• 90 degrees

• 180 degrees

• 360 degrees

• 270 degrees

What is a point in geometry?

• A point is a specific location in space that has no size or dimension.

• A point is a geometric figure with length and width.

• A point is a solid object with volume.

• A point is a line segment that connects two endpoints.

What is a ray in geometry?

• A ray is a part of a line that starts at a point and extends infinitely in one direction.

• A ray is a line that has two endpoints.

• A ray is a part of a circle that extends from the center to the circumference.

• A ray is a straight line that connects two points.

What is a quadrilateral?

• A polygon with three sides.

• A polygon with four sides.

• A polygon with five sides.

• A polygon with six sides.

What is the difference between a line and a line segment?

• A line has two endpoints, while a line segment extends infinitely in both directions.

• A line extends infinitely in both directions, while a line segment has two endpoints.

• A line is always straight, while a line segment can be curved.

• A line segment is longer than a line.

How do you measure an angle with a protractor?

• Align the protractor's baseline with one side of the angle and read the measurement where the other side intersects the protractor.

• Place the protractor on the angle and measure the distance between the two sides.

• Draw a line from the vertex to the protractor's center and measure the length of the line.

• Use the protractor to draw a straight line and then measure the angle formed.

What is an acute angle?

• An angle that measures less than 90 degrees.

• An angle that measures exactly 90 degrees.

• An angle that measures more than 180 degrees.

• An angle that measures between 90 and 180 degrees.

What is an obtuse angle?

• An angle that measures exactly 90 degrees.

• An angle that measures less than 90 degrees.

• An angle that measures more than 90 degrees but less than 180 degrees.

• An angle that measures exactly 180 degrees.