Ryan wants to use 22 feet of fence to surround a section of grass for his dog to play in. He wants the area of this section of grass to be 30 square feet.
Which dimensions could Ryan use for this section of grass?
2ft by 9 ft
3ft by 8 ft
4 ft by 7 fy
5 ft by 6 ft
come on -- take a look at the answers. Only one of them even multiples to make 30: 5x6.
and, oddly enough 2(5+6) = 2*11 = 22.
The answer is D 5ft by 6ft.
To find the dimensions that Ryan could use for the section of grass, we need to consider the perimeter and area of the section.
Let's start by calculating the perimeter. The perimeter is the sum of all the sides of the fence. In this case, we are given that the perimeter is 22 feet.
Now, let's consider the dimensions given:
1) 2 ft by 9 ft: The perimeter is 2(2) + 2(9) = 22 feet, which matches the given perimeter. To find the area, we multiply the length and width: 2 ft x 9 ft = 18 square feet.
2) 3 ft by 8 ft: The perimeter is 2(3) + 2(8) = 22 feet, which matches the given perimeter. To find the area, we multiply the length and width: 3 ft x 8 ft = 24 square feet.
3) 4 ft by 7 ft: The perimeter is 2(4) + 2(7) = 22 feet, which matches the given perimeter. To find the area, we multiply the length and width: 4 ft x 7 ft = 28 square feet.
4) 5 ft by 6 ft: The perimeter is 2(5) + 2(6) = 22 feet, which matches the given perimeter. To find the area, we multiply the length and width: 5 ft x 6 ft = 30 square feet.
So, out of the given dimensions, Ryan could use a section of grass that is 5 ft by 6 ft.