The distance around a yard
Perimeter
length: 15 inches width: 15 inches
60 inches
Alondra painted a portrait. The height of the portrait measures 14 inches. The width is half as long as the height. What is the area of the portrait?
98 square inches
the measure of the number of unit squares needed to cover a surface
area
What is the area of the figure?
7 X 14 = 98 sq. ft.
9 X 5 = 45 sq. ft.
98+45= 143 sq. ft.
The amount of unit squares it takes to paint a wall
Area
length: 20 inches width: 10 inches
60 inches
Ariana used 60 centimeters of lace to make a border around a rectangular card. The width of the card is 20 centimeters. What is the length of the card?
10 centimeters
any side of a two-dimensional figure
base
What is the area?
2 X 10 = 20 sq. cm.
7 X 4 = 28 sq. cm.
20+28=48 sq. cm.
The space on the screen of an iPad
Area
length: 5 in. width: 8 in
26 inches
Lewis drew a rectangle with a perimeter of 16 inches. Then he tried to draw a square with a perimeter of 16 inches. Draw 3 different rectangles that Lewis could have drawn.
Possible dimensions: 1 inch × 7 inches; 2 inches × 6 inches; 3 inches × 5 inches.
A square that is 4 inches by 4 inches can also be drawn.
a set of symbols that expresses a mathematical rule
formula
What is the area?
11 X 6 = 66 sq. m.
15 X 4 = 60 sq. m.
66+60=126 sq. m.
The border around a cell phone cover
Perimeter
length: 30 inches width: 2 inches
64 inches
Eloisa and Lupe are drawing plans for rectangular play areas. In Eloisa's plan, the play area is 15 feet by 12 feet. In Lupe's plan the play area is 14 feet by 14 feet. What is the area of each play area?
Eloisa: 180 square feet
Lupe: 196 square feet
the distance around a figure
perimeter
What is the area of the shaded region?
12X10=120 sq. m.
7X2=14 sq. m.
Subtract 120-14=106 sq. m.
The space covering the faces of a cube
surface area
length: 25 inches width: 4 inches
58 inches
A row of lockers covers 160 square feet of space along a wall. If the lockers are 5 feet tall, what length along the wall do they cover?
32 feet
a unit of area with dimensions of 1 unit × 1 unit
square unit
What is the area of the shaded region?
4X5=20 sq. m.
14X4=56 sq. m.
4X5=20 sq. m.
20+56+20=96 sq. m.