16.7 cm
15.9 cm
8.9 cm
5 cm
Wooden door stopper needs to be covered with stickers to match the door for a directing contest. If one package of stickers covers a surface area of 75 square centimeters, how many packages of stickers can be purchased? (Find the closet number to the surface area of the door stopper. Stickers may only be purchased in whole packs)
a. you will need 7 packages of stickers
b. you will need to 414.14 cm^2 packages of stickers
c. you will need 6 packages of stickers
d. you will need 5.5 packages
To find the surface area of the wooden door stopper, we need to calculate the sum of all sides:
16.7 cm + 15.9 cm + 8.9 cm + 5 cm = 46.5 cm
This means the total surface area of the wooden door stopper is 46.5 cm^2.
Since one package of stickers covers 75 cm^2, we need to divide the total surface area of the door stopper by the area covered by one package of stickers:
46.5 cm^2 / 75 cm^2 = 0.62
Since we can only purchase whole packages of stickers, we would need to round up to the nearest whole number, so we would need 1 package of stickers.
Therefore, the correct answer is:
b. you will need 1 package of stickers