Chapter 1-3 CPM Review

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by the formula P = 2(length + width).

Front

If x = 4, what is the length of the shortest side of a triangle with sides 4, 8, and 11?

Back

The shortest side is 4.

Front

What is a straight angle?

Back

A straight angle is an angle that measures 180 degrees.

Front

Solve for x: 3x - 1 + 2x + 5 + 3x - 1 + 2x + 5 = 38

Back

x = 3.

Front

What transformation occurs when a shape is reflected across the y-axis?

Back

The x-coordinates of the points of the shape change sign.

Front

Define a translation in geometry.

Back

A translation is a transformation that moves every point of a shape the same distance in the same direction.

Front

What is the sum of the interior angles of a triangle?

Back

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

Front

What is the formula for the area of a rectangle?

Back

The area A of a rectangle is given by the formula A = length × width.

Front

What is the definition of a reflection in geometry?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.

Front

If the length of a rectangle is 5x and the width is 4, what is the expression for the perimeter?

Back

The perimeter is 10x + 8.