4th Grade Bridges Unit 5 Review

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

If angle XYZ is a right angle and angle B is 25 degrees, what is the measurement of angle C?

Back

Angle C is 65 degrees.

Front

What is the formula to find the perimeter of a rectangle?

Back

Perimeter = 2(length + width) or P = 2L + 2W.

Front

What is the area of a rectangle?

Back

Area = length × width.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides.

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts.

Front

How many lines of symmetry does a rectangle have?

Back

A rectangle has 2 lines of symmetry.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

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 an acute angle?

Back

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