8th Grade: Area & Perimeter of Rectangles Quiz

A rectangular garden has a length of (2x + 3) meters and a width of (x + 1) meters. What is the area of the garden in square meters?

• x^2 + 3x + 2

• 2x^2 + 6x + 3

• 2x^2 + 5x + 3

• 2x^2 + 4x + 1

The perimeter of a rectangular swimming pool is given by the expression (2x + 10) meters. If the length is (x + 5) meters, what is the width of the pool in meters?

• 5

• 10

• x

• 0

A rectangular classroom has a length of (3x - 2) meters and a width of (x + 4) meters. Calculate the perimeter of the classroom.

• 10x - 4 meters

• 8x + 4 meters

• 4x + 6 meters

• 6x + 8 meters

A rectangular field has a length of (4x + 1) meters and a width of (2x + 3) meters. What is the area of the field?

• 4x^2 + 8x + 6

• 8x^2 + 14x + 3

• 10x^2 + 12x + 1

• 6x^2 + 10x + 3

The perimeter of a rectangular plot of land is (6x + 20) meters. If the width is (2x + 5) meters, find the length of the plot in meters.

• 4x + 5

• 3x + 10

• 2x + 15

• x + 5

A rectangular poster has a length of (5x + 2) inches and a width of (3x - 1) inches. What is the area of the poster in square inches?

• 20x^2 - 4x + 5

• 15x^2 + x - 2

• 9x^2 + 5x + 1

• 12x^2 + 7x - 3

The area of a rectangular room is represented by the polynomial (x^2 + 5x + 6) square meters. If the width is (x + 2) meters, what is the length of the room?

• x + 3

• x + 1

• x + 4

• x + 5

A rectangular box has a length of (2x + 4) cm and a width of (x + 3) cm. Calculate the perimeter of the box.

• 8x + 12 cm

• 6x + 14 cm

• 4x + 10 cm

• 5x + 16 cm

A rectangular garden has a length of (x + 7) meters and a width of (3x - 1) meters. What is the area of the garden in square meters?

• 3x^2 + 15x + 5

• 4x^2 + 28x - 1

• 3x^2 + 20x - 7

• 2x^2 + 14x + 7

The perimeter of a rectangular fence is (8x + 24) meters. If the length is (3x + 6) meters, what is the width of the fence in meters?

• x + 6

• 2x + 12

• 4x + 10

• x + 4