Respuesta :
The formula of the total surface area of the cylinder would be: Base area+ surface area along the circumference.
To find an exact value,we would also have to save 兀and not turn it in other approximate values.
The base area would be:
兀r^2
=兀(50)^2
=2500兀 ft^2
The surface area along the circumferecen would be:
2兀r(base circumference) x height
=2兀50×18
=250兀×18
=4500兀 ft^2
Adding them up,we would then find the total surface area:
4500兀+2500兀
=7000丌 ft^2
Thus,the answer is 7000 丌 ft^2.
Hope it helps!
To find an exact value,we would also have to save 兀and not turn it in other approximate values.
The base area would be:
兀r^2
=兀(50)^2
=2500兀 ft^2
The surface area along the circumferecen would be:
2兀r(base circumference) x height
=2兀50×18
=250兀×18
=4500兀 ft^2
Adding them up,we would then find the total surface area:
4500兀+2500兀
=7000丌 ft^2
Thus,the answer is 7000 丌 ft^2.
Hope it helps!
Answer
6800π ft²
Explanation
The surface area of a cylinder involves 2 parts.
1) the circular parts (bottom and the top)
2) the curved surface.
The area of the circular parts = 2×π×r²
= 2 × π × 50²
= 5000π ft²
The area of the curved surface = 2πrh
= 2 × π ×50 × 18
= 1800π ft²
The total surface area of the cylinder = 5000π+1800π
= 6800π ft²
I gave the answer in terms of pie (π) to avoid rounding which will make the answer an estimate.
The exact answer is 6800π ft².