Tommy and cole are planning to build an aquarium for their pet fish if the dimensions of the aquarium are 17 inches long 9 inches wide and 11 inches tall how much glass do they need to buy to enclose the aquarium?
To calculate the amount of glass needed to enclose the aquarium, we need to find the surface area of each side of the aquarium.
First, let's find the surface area of the front and back sides:
- Front and back sides: 17 inches long x 11 inches tall = 187 square inches x 2 = 374 square inches
Next, let's find the surface area of the two side walls:
- Side walls: 9 inches wide x 11 inches tall = 99 square inches x 2 = 198 square inches
Now, let's find the surface area of the top and bottom:
- Top and bottom: 17 inches long x 9 inches wide = 153 square inches x 2 = 306 square inches
Finally, let's add up all the surface areas to get the total amount of glass needed:
Front and back sides: 374 square inches
Side walls: 198 square inches
Top and bottom: 306 square inches
Total glass needed = 374 + 198 + 306 = 878 square inches
Therefore, Tommy and Cole will need to buy 878 square inches of glass to enclose the aquarium for their pet fish.