The total surface area of a cylinder can be calculated using the formula:
2πr^2 + 2πrh
Where r is the radius and h is the height.
First, convert the radius from centimeters to meters:
50 cm = 0.5 m
Now, calculate the total surface area of one cylinder:
2(3.14)(0.5)^2 + 2(3.14)(0.5)(3)
2(3.14)(0.25) + 2(3.14)(1.5)
6.28(0.25) + 9.42
1.57 + 9.42
10.99 m^2
Since Giavonna has to paint 7 cylinder-shaped stools, the total surface area she has to paint is:
7 * 10.99 = 76.93 m^2
Therefore, the correct answer is:
76.93 m^2
Giavonna has to paint 7 cylinder-shaped stools, including the top, bottom, and side of each stool. If the height of each stool is 3 meters and the radius is 50 centimeters, what is the total surface area Giavonna has to paint? Use 3.14 for π.(1 point)
Responses
76.93 m2
76.93 m squared
16,642 m2
16,642 m squared
10.99 m2
10.99 m squared
65.94 m2
65.94 m squared
1 answer