Answer:
D. 84 and 6 over 7 in2
Explanation:
The surface area of the cylindrical mini muffin can be calculated as follows:
Surface area = 2πr^2 + 2πrh
where r is the radius of the circular base and h is the height of the cylinder.
Given that the diameter of the mini muffin is 2 inches, the radius can be calculated as 1 inch (since radius = diameter / 2).
So, r = 1 inch and h = 1 and 1/4 inches.
Substituting these values into the surface area formula, we get:
Surface area = 2 x (22/7) x 1^2 + 2 x (22/7) x 1 x (5/4)
= (44/7) + (55/7)
= 99/7
≈ 14.14 square inches
Therefore, the surface area of 1 mini muffin is approximately 14.14 square inches.
To wrap 6 mini muffins, we need to multiply the surface area of 1 mini muffin by 6:
Surface area of 6 mini muffins = 6 x 14.14
≈ 84.84 square inches
Rounding off to one decimal place, the minimum amount of paper needed to wrap 6 mini muffins is approximately 84.8 square inches, which is closest to option D, 84 and 6/7 in^2.