Area = length * height.
A = 20cm * 12cm
A = 240 cm2
220 square cm
The perimeter of a rectangle measuring 20x45 centimeters is (2*20) + (2*45) = 40 + 90 = 130 cm
Assuming the cookie sheet to be a rectangle, and 12 and 20 inches are the dimensions of the sheet, the area of the rectangle is s1s2. Plugging in the values yield 12(20) = 240 square inches.
12
To create a shape with an area of 16 square centimeters and a perimeter of 20 centimeters, you can use a rectangle. For example, if you choose a length of 8 centimeters, the width would need to be 2 centimeters (since area = length × width = 8 cm × 2 cm = 16 cm²). The perimeter can be calculated as 2(length + width) = 2(8 cm + 2 cm) = 20 cm. Thus, a rectangle measuring 8 cm by 2 cm meets both criteria.
21cm3
11*20=220 cm2
The width of the rectangle is 4 cm
The perimeter of a rectangle is 2length +2 width. the width is x the length is x+4. Plug into the equation 2(x)+2 (x+4)=20 2x+2x+8=20 4x=12 x=3 The width is 3 the length is 7 (3+4) Area is length times width. 3(7)= 21. the area is 21 centimeters
220 square cm
30 ft
A = L x W 20 = 10 x W 20/10 = W 2 = W
To find the area of a rectangle, multiply the length by the width. In the case of a 5 cm by 4 cm rectangle, the area would be 20 square centimeters.
The perimeter of a rectangle measuring 20x45 centimeters is (2*20) + (2*45) = 40 + 90 = 130 cm
Assuming the cookie sheet to be a rectangle, and 12 and 20 inches are the dimensions of the sheet, the area of the rectangle is s1s2. Plugging in the values yield 12(20) = 240 square inches.
12
6cm. The perimeter of the rectangle has to add to 20. 4+4+6+6=20 Hope this helps ;-)