Chapter 1-3 CPM Review

Front

What is reflection symmetry?

Back

Reflection symmetry, or line symmetry, occurs when a shape can be divided into two identical halves that are mirror images of each other along a line of reflection.

Front

How many lines of reflection symmetry does an isosceles triangle have?

Back

An isosceles triangle has one line of reflection symmetry.

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) or P = 2l + 2w.

Front

What is the measure of the angles in a triangle?

Back

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

Front

How do you calculate the area of a triangle?

Back

The area A of a triangle is calculated using the formula A = \frac{1}{2}bh, where b is the base and h is the height.

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 or A = lw.

Front

What is the value of x in the equation 2x + 4 = 16?

Back

To solve for x, subtract 4 from both sides to get 2x = 12, then divide by 2 to find x = 6.

Front

What is the formula for the area of a circle?

Back

The area A of a circle is given by the formula A = \pi r^2, where r is the radius.

Front

What is the definition of a rectangle?

Back

A rectangle is a quadrilateral with four right angles and opposite sides that are equal in length.

Front

What is the definition of a triangle?

Back

A triangle is a polygon with three edges and three vertices.