what is the surface area of a conical grain storage tank that has a height of 37 meters and a diameter of 16 meters round the answer to the nearest square meter
A. 2,831 square meters
B. 2,664 square meters
C. 1,152 square meters
D. 1,131 square meters

Question

what is the surface area of a conical grain storage tank that has a height of 37 meters and a diameter of 16 meters round the answer to the nearest square meter
A.  2,831 square meters
B.  2,664 square meters
C.  1,152 square meters
D.  1,131 square meters

anonymous · Answer

im still confused @alekos

anonymous · Answer

okay so the base of this grain storage is a circle right? since its conical so just use the circle area formula: pi*r*^2

anonymous · Answer

that would be the area of the base then multiply by the height of 37 meters

anonymous · Answer

got it?

anonymous · Answer

im still confused would h be 37 and r is 16???????

anonymous · Answer

i got 2368pi/3

anonymous · Answer

is that right?

alekos · Answer

stand by, they want surface area not volume

alekos · Answer

Surface area of a cone

$$pir(r+\sqrt{h ^{2}+r^{2}})$$

anonymous · Answer

I have to go for like 10 to 15 mins but i will be back

alekos · Answer

r=8 and h=37  so we have 

$$8\pi(8+\sqrt{37^{2}+8^{2}})  $$

anonymous · Answer

this time i got 1,152

anonymous · Answer

diameter is 16 and the radius is half of the diameter so the radius is 8

alekos · Answer

That is correct