PLSSSS HELP The area of a cylinder varies jointly with the radius and the height. When the radius is 3 and the height is 6 the a
rea is 36π. Find the are when the radius is 4 and the height is 5
1 answer:
Answer:
167.55
Step-by-step explanation:
so it varies jointly so
A-area if cylinder
so
so
where k is the constant
so apply the first set of values to get k=2/3
then substitute the k with the second set of values
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