Geometry - Area and Perimeter

the number of square units that covers a flat surface

• circumference
• volume
• perimeter
• area

A 90 degree angle (corners of a rectangle) is called a ______ angle.

in math, a rule expressed in numbers and symbols

• formula

• equation

• variable
• fraction

the distance or measurement of something from end to end

• width
• depth
• height
• length

to add a number to itself a specific number of times

• subtraction
• addition
• multiplication
• division

the distance or measurement around a shape. It equals the total length of all the sides

• diameter

• perimeter

• formula

• area

a two-dimensional, four-sided shape made of two pairs of parallel sides that are opposite one another and four right angles

• rectangle

• trapezoid

• pentagon

• triangle

a two-dimensional, four-sided shape that has four right angles and all sides are equal in length

• rectangle

• square

• rhombus

• triangle

a square whose sides each measure one unit. (These are used to measure area.)

• inch

• square

• square unit
• centimeter

the distance or measurement from one side of something to the other

• depth
• height
• length
• width