Perimeter
Area
100

This is a regular octagon, meaning that all sides on the octagon are congruent. If one side’s length is 13 cm, what is the perimeter of the octagon?


 p = 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13

 (or p =13 x 8)

p = 104 cm

100

Rectangle LMNO is graphed on the coordinate plane. Point L is located at (-3, 2), Point M is at (2, 2), Point N is at (2, -6) and Point O is located at (-3, -6). What is the area of Rectangle LMNO?

The length is 5 units and the width is 8 units


A = l x w

A = 5 x 8

A = 40 units2

200

The perimeter of a square garden is 60 feet. What is the length of one side?

Each side is 15 feet long.

300

Rectangle ABCD is graphed on the coordinate plane. Point A is located at (-2, 5), Point B is at (4, 5), Point C is at (4, -3) and Point D is located at (-2, -3). What is the perimeter of Rectangle ABCD?

The rectangle would be 6 units by 8 unites, 

so the perimeter is 28 units.

400

The length of a rectangle is 3 times longer than the width. The width is 4.5 inches. What is the perimeter of the rectangle?

The width is 4.5 and the length is 13.5, so 

4.5 + 13.5 + 4.5 + 13.5 = 36 inches.

500

A rectangle has an area of 96 square units. One of the sides is 8 inches long.


What is the perimeter of this rectangle?

If the area is 96 square inches and one length is 8 inches, the width must be 12 inches. 


The perimeter = 8 + 12 + 8 + 12

p = 40 inches

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