The paper cup would not roll straight. One end was 7cm in diameter, and the other end was 5 cm in diameter. In one roll of the cup, how far would the larger end roll? Use 3.14 for pie
What you are doing here is comparing the circumference , the distance which is rolled
bottom of cup: radius = 5 cm, so the circumference is
2πr = 10π
top of cup: radius = 7 cm, so the circumference is
14π or appr 43.96 cm
To find out how far the larger end of the cup would roll, we need to calculate the circumference of the larger end.
The formula for the circumference of a circle is given by:
Circumference = π * diameter
Let's calculate the circumference of the larger end first:
Circumference = 3.14 * 7 cm
Circumference = 21.98 cm (rounded to two decimal places)
Therefore, in one roll of the cup, the larger end would roll approximately 21.98 cm.
To find out how far the larger end of the cup would roll in one roll, we need to calculate the circumference of the larger end.
The circumference of a circle can be found using the formula: C = πd, where C is the circumference and d is the diameter.
Given that the diameter of the larger end is 7 cm, we can find its circumference by substituting the value into the formula:
C = π × 7 cm
C ≈ 22.0 cm (rounded to one decimal place)
Therefore, in one roll, the larger end of the cup would roll approximately 22.0 cm.