How to find the area of a rectangle

Practice Questions

SAT Math › How to find the area of a rectangle

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1

Find the area of a rectangle given width 6 and length 9.

2

George wants to paint the walls in his room blue. The ceilings are 10 ft tall and a carpet 12 ft by 15 ft covers the floor. One gallon of paint covers 400 ft^{2} and costs $40. One quart of paint covers 100 ft^{2} and costs $15. How much money will he spend on the blue paint?

3

Para-rec1

Rectangle ABCD is shown in the figure above. Points A and B lie on the graph of y = 64 – _x_2 , and points C and D lie on the graph of y = _x_2 – 36. Segments AD and BC are both parallel to the y-axis. The x-coordinates of points A and B are equal to –k and k, respectively. If the value of k changes from 2 to 4, by how much will the area of rectangle ABCD increase?

4

A parallelogram with right angles has side lengths of and . What is its area?

5

You have a poster of one of your favorite bands that you are planning on putting up in your dorm room. If the poster is 3 feet tall by 1.5 feet wide, what is the area of the poster?

6

Find the area of a rectangle with side length 7 and 9.

7

Two circles of a radius of each sit inside a square with a side length of . If the circles do not overlap, what is the area outside of the circles, but within the square?

8

Find the area of a rectanlge given width is 2 and length is 3.

9

If the area Rectangle A is larger than Rectangle B and the sides of Rectangle A are and , what is the area of Rectangle B?

10

The front façade of a building is 100 feet tall and 40 feet wide. There are eight floors in the building, and each floor has four glass windows that are 8 feet wide and 6 feet tall along the front façade. What is the total area of the glass in the façade?

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