Applications of Perimeter and Area

The area of a circle is 28.27. Find the radius.

• 3

• 6

• 4

• 9

• None of the above.

Find the area of a rectangle with length (x-5) and width (3x+1).

• 3x²+16x-5

• 3x²-14x+5

• 3x²-14x-5

Find the perimeter of a rectangle with length (x-5) and width (3x+1).

• 8x-8

• 4x-4

• 8x+8

• 4x+12

• 2x²+20x+32

• x²+10x+16

• 4x²+40x+64

• x²+32x+16

You want to create a garden in your backyard. Given are the dimensions of the garden and a border. Determine the area of the gray border surrounding the garden bed.

• 8x + 24

• 6x + 32

• 2x² - 8x + 4

• x² + 16x + 16

Find the area of the triangle with height (x+8) and base (2x+4). (A=1/2bh)

• 2x²+20x+32

• x²+10x+16

• 4x²+40x+64

A rectangle has width (2x + 3) and length (2x - 4).  What is the perimeter of the rectangle?

• 4x² - 12

• 4x² - 1

• 8x² - 2

• 4x² - 2x - 12

What is the perimeter of the rectangle?

• x²+8x-5

• 2x²+16x-10

• 2x²+10x-8

• 6x-2

Write a polynomial expression for the area of the triangle: 

• 18x² - 54x

• 9x² + 9

• 36x² + 108x

• 9x² + 27x

• 8x² + 4
• 4x² + 2