Area concepts of polygons & Area of rectangles

The roof of a cabin is to be shingles at a cost of $70 a square.(A square, and shingling, is a region with an area of 100 ft.².) find the cost of shingling the roof shown, assuming the roof is symmetrical.

$756.00

select the following numbers that cannot represent the area of a polygon.

-5,0,-200

Some pleated draperies must be twice as wide as the ones that they cover. How many square yards of material I needed to cover this kind of window 2 ft wide and 3 ft long?

1 1/3

A rectangle is twice as long as it is wide. If it's area is 50 sq. yd., find the length.

10yd

find the area of grass in this home landscape diagram.

13,300 sq.ft.

Find the number of square inches in one square foot

144

Find the area of a rectangle with a length of 6 inches in width of 2 feet

144in^2

if the area of each of the triangular regions is as shown, what is the area of the polygon? 12 15 18

15

if the area of each of the triangular regions is as shown, what is the area of the polygon? 8 14 16

16

if the area of each of the triangular regions is as shown, what is the area of the polygon? 16 17 18

18

The area of a desktop is 8 3/4 ft.². If the length is 3 1/2 ft.², find the width.

2 1/2 ft

Triangle RST is congruent to triangle WXY. If the area of triangle WXY is 20 square inches, then the area of triangle RST is___.

20in^2

Find the length of a rectangle with an area of 16 cm² in the width of 8 cm

2cm

A graphic designer is planning a layout for a magazine advertisement of three pictures, shown below. The ratio of the sum of the whiffs of the three pictures to the total width of the advertisement is 4:5. if each picture is 4 inches wide, what is the length of each of the four empty spaces between the pictures(t)?

3/4 inch

if the area of each of the triangular regions is as shown, what is the area of the polygon? 31 32 33

32

The Smiths plan to re-carpet their family room, which measures 15 feet, by 20 feet. How many square yards of carpet are needed?

33 1/2

A wooden fence 6 feet high and 30 feet long is to be painted. How many gallons of paint are needed if 1 gallon covers 400 ft.²?

4.5

find the area of a square with a side of 7 feet

49ft^2

Find a side of a square with an area of 25 ft.²

5ft

A piece of sheet metal is cut and been to form a box, as shown in the box has no top. Find the area of the bottom.

72cm^2

Find the area of a rectangle with a base of 12 inches in height of 8 inches.

96in^2

A rectangular plot measures 20 feet. By 30 feet. A 3 ft wide sidewalk surrounds it. Find the area of the sidewalk.

NOT 600ft^2

Choose the option that best completes the following statement If two polygons____ then they have the same area.

are congruent

This lesson will focus on finding the___ of a triangle.

area

The ____ of a rhombus divide it into four triangles of equal area.

diagonals

The two diagram show two different zoo enclosures for elephants. Sheila says that enclosure B gives elephants more room. Do you agree?

disagree

an artist needs to design a 6 foot tile platform the whole statue for a park. In order to be stable, each base of the proper must Cover approximately 20 ft.². Which of the ships will use The least amount of stone for the base of the platform?

the 2nd option! (6ft by 5ft) (cylinder)

area

the measure of the space inside a geometric figure

region

the space inside and including the sides of a figure

when a diagonal is drawn in rectangle, what is true of the areas of the two triangles into which it divides the rectangle?

they are equal!

Alice, Bob, and Christie are setting up aquariums. The design of each aquarium is below. Alice has enough pebbles to cover 9 ft.². Does ship enough to put a layer of peppers on the bottom of Aquarium A?_____ Bob has enough pebbles to cover 20 ft.². Does he have enough to put a layer of pebbles on the bottom of aquarium b?_____ Christie has enough pebbles to cover for 4 square feet. Does she have enough to put a layer of pebbles on the bottom of aquarium C?____

yes,yes,no