Can someone help me with this question T-T
#Area
heavy ledge
lyric topazBOT
Can someone help me with this question T-T
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Lets say the TSA of the cone is A/360piR² where R=20+x and that of the cut cone is A/360pir² where r=20cm and that of the frustrum is 600pi =(A/360piR²)-(A/360piŕ²)
heavy ledge
but they are asking for the curved surface area, not the total tho...
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Yeah ik but you first have to find x and r so you can get A
heavy ledge
ah ok ill try to do the calculation! Thank youuu
I still dont get it...
I cant find x and r
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(x+20)/r =20/10
600pi=(pirl)-(pi1020)
Us those two equations to find r and l
r=20 and x=20
@heavy ledge
heavy ledge
thank you again T-T
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You can now solve for A?? Right
heavy ledge
Ive been struggling w this for days
yee
it was the radius part that I didnt quite understand
cause I forgot about the ratio thing
ty!!
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A=180°
heavy ledge
yes I got the same answer