4th Grade End of the Year Math Review

Front

What type of triangle has one right angle?

Back

Right triangle.

Front

What do you call a triangle with all sides of different lengths?

Back

Scalene triangle.

Front

What is the standard form of a number?

Back

The standard form is a way of writing numbers using digits, such as 343 for three hundreds, four tens, and three ones.

Front

What is an acute angle?

Back

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

Front

What is the expanded form of a number?

Back

The expanded form of a number shows the value of each digit, such as 400 + 20 + 8 for the number 428.

Front

What is a line in geometry?

Back

A line is a straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

How many degrees are in a right angle?

Back

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 vertex in a triangle?

Back

A vertex is a point where two sides of a triangle meet.

Front

What is a polygon?

Back

A polygon is a closed figure with three or more straight sides.