## Unit 8 Perimeter & Area

Quizlet - Use this website to study and test your knowledge of math vocabulary.

Play Rags to Riches - Test your knowledge of Perimeter and Area here.

Play Rags to Riches - Test your knowledge of Perimeter and Area here.

Recognizing Student Achievement

Student’s are making adequate progress if they can demonstrate the following:

Student’s are making adequate progress if they can demonstrate the following:

- rename fractions with denominators of 10 and 100 as decimals and percents
- use data to create a line graph
- count whole and half squares to find the area of a polygon
- calculate the perimeter of a figure when the length of one side is missing
- solve fraction addition and subtraction problems
- describe a strategy for finding and comparing the areas of a square and polygon

**Vocabulary****area - The amount of surface inside a closed boundary. Area is measured in square units, such as square inches or square centimeters.**

base - The side on which a polygon “sits.”

equilateral triangle - A triangle with all three sides equal in length. All three angles also have the same measure.

formula - A general rule for finding the value of something. A formula is often written using letters, called variables which stand for the quantities involved. The formula for the area of a rectangle may be written as A = l x w, where A represents the area of the rectangle, l represents the length and w represents the width.

height of a parallelogram - The length of the shortest line segment between the base and the line containing the opposite side. The shortest segment is perpendicular to the base.

height of a triangle - The length of the shortest line segment between the base and the vertex opposite that base. The shortest segment is perpendicular to the base.

isosceles triangle - A triangle having two sides of equal length.

perimeter - The distance around a two dimensional shape, along the boundary of the shape.

perpendicular - Crossing or meeting at right angles.

scale - The ratio of a distance on a map, globe, or drawing to an actual distance.

square units - A unit used in measuring area, such as a square centimeter or square foot.

variable - A letter or other symbol that represents a number.digitbase - The side on which a polygon “sits.”

equilateral triangle - A triangle with all three sides equal in length. All three angles also have the same measure.

formula - A general rule for finding the value of something. A formula is often written using letters, called variables which stand for the quantities involved. The formula for the area of a rectangle may be written as A = l x w, where A represents the area of the rectangle, l represents the length and w represents the width.

height of a parallelogram - The length of the shortest line segment between the base and the line containing the opposite side. The shortest segment is perpendicular to the base.

height of a triangle - The length of the shortest line segment between the base and the vertex opposite that base. The shortest segment is perpendicular to the base.

isosceles triangle - A triangle having two sides of equal length.

perimeter - The distance around a two dimensional shape, along the boundary of the shape.

perpendicular - Crossing or meeting at right angles.

scale - The ratio of a distance on a map, globe, or drawing to an actual distance.

square units - A unit used in measuring area, such as a square centimeter or square foot.

variable - A letter or other symbol that represents a number.digit

**-**One of the number symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 in the standardbase-ten system.