Answer:
The height is 20 cm.
Step-by-step explanation:
First, we have to know that the volume formula is V = πr²h and the base area of cylinder is a circle. So we can let πr² be 77 cm² . Then we have to substitute the following values into the formula :



Let πr² be 77,
Let v be 1540,




Can I get the question please. I might help you with your question.
Answer:
b.n(A)=1800
Step-by-step explanation:
b.n(A)=1800
500 because the 2 in the tens spot is less than five so therefore you keep the 5 in the hundreds spot the same