Answer:
6
Step-by-step explanation:
The circumference of a circle is , so . We can use this because the area of a circle is . Thus, .
Answer:
a)
b) what?
c) -70
Step-by-step explanation:
If you have any questions feel free to ask in the comments - Mark
sorry for the terrible answer
Answer:
the answer is 30
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The percentage change in volume from cylinder A to cylinder B; D: 100%
<h3>How to find the percentage change in Volume?</h3>
Formula for Volume of a Cylinder is;
V = πr²h
Thus, volume of Cylinder A is;
V_a = π * 7² * 5
V_a = 245π
Thus, percentage change in volume is;
[245π/(490π - 490π)] * 100%
Percentage change in volume = 100%
Read more about percentage change in volume at; brainly.com/question/9554871
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