A bucket open at the top is of the frustum of a cone the diameters of its upper and lower circular ends are 40 cm and 20 cm respectively if a total of 17600 cm3 of water can be filled in the bucket find its total surface area.
Pls this is for my board exam in 1 day pls it is urgent.
Answers
Answered by
34
hey friend your ans is here :--
first we would have to find the value of height using the volume formula of frustum.
so we would have height = 24 cm.
and then we would find the value of :
l = 26 .
now when we would put these value in the formula of finding the total surface area of frustum, we would get the value =
= 22/7 × 1280 = 4022.8571 cm^2.
hope this ans would help you a lot.
✔so I request you to mark it as brainliest ans. .
{♡♡✔THANK YOU ✔♡♡}.
first we would have to find the value of height using the volume formula of frustum.
so we would have height = 24 cm.
and then we would find the value of :
l = 26 .
now when we would put these value in the formula of finding the total surface area of frustum, we would get the value =
= 22/7 × 1280 = 4022.8571 cm^2.
hope this ans would help you a lot.
✔so I request you to mark it as brainliest ans. .
{♡♡✔THANK YOU ✔♡♡}.
Answered by
0
Answer:
Total surface Area=4022.8571 cm²
Step-by-step explanation:
In a frustum of a cone
r₁=20 cm
r₂=10 cm
Volume of frustum=17600 cm³
1/3πh(r₁²+r₂²+r₁r₂)=17600
h=24 cm
l=√h²+(r₁-r₂)²
l=26 cm
total surface are =π(r₁+r₂)l+πr₁²+πr₂²
=4022.8571 cm²
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