1 answer
(click or scroll down)
To find the total surface area of one stool, we need to calculate the area of the top, the area of the bottom, and the area of the side.
1. Area of the top and bottom:
A = πr^2
A = 3.14 * (0.5)^2
A = 3.14 * 0.25
A = 0.785 m^2
2. Area of the side:
The side of the cylinder is essentially a rectangle that wraps around the cylinder. The height of the rectangle is the height of the cylinder (3 meters) and the width is the circumference of the circle (2πr). So, area of the side:
A = 2πrh
A = 2 * 3.14 * 0.5 * 3
A = 9.42 m^2
Total surface area of one stool:
0.785 + 0.785 + 9.42 = 10.99 m^2
Since Giavonna has to paint 7 stools, the total surface area she has to paint is:
10.99 * 7 = 76.93 m^2
Therefore, the answer is:
76.93 m squared