Eureka Math Grade 4 Module 4 End of Module Review

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

How do you read a protractor?

Back

To read a protractor, align the baseline of the protractor with one side of the angle and find the measurement where the other side intersects the numbered scale.

Front

What is the measure of a right angle?

Back

A right angle measures exactly 90 degrees.

Front

What is symmetry in shapes?

Back

Symmetry in shapes means that one half of the shape is a mirror image of the other half.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are of equal length and all three angles are equal, each measuring 60 degrees.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths and all three angles are different.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with four right angles.