A right angled triangle whose sides are 15 cm and 20 cm is made to resolve about its hypotenuse.Find the volume and surface area of the double cone so formed.(use π=3.14)
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Let ABC be a right angled triangle.,
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Let ABC be a right angled triangle where AB=15 cm and AC=20 cm. Using Pythagoras theorem,. BC2 = AB2 + AC2 BC2=15square + 20square. BC2=25 cm.
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calculate slant height of cone which is hypotaneous of triangle.
so l = root ( 15^2 + 20^2)
= root ( 225 + 400)
= root (625)
= 25
i assume its base is 15 cm . so r is 15 cm . height is 20 cm
so volume is = pi* r^2 *h /3= 3.14 × 15 × 15 × 20/3
surfave area = pi* r^2 + pi *r *l = pi * r ( r + l)
= 3.14 * 15 ( 15 + 25)
i didnt calculated . is my answer wrong after calculation ?
also i consider base is 15. it might be 20 as it was not clear in question
Hmm
Ap to kl ambitious the aj virtuoso
yeah. i solved too many question. hey mihuka my this answer is wrong as 8 interpreted question wrongly. you can delete my answer as it not the correct one
Nhi yr
Ab expert ho gye vah vah
he he he
thanks
Wlcm
Answered by
1
hope it's helpfull for you ..
srry diag. is not clearly n perfectly drawn
Attachments:
so
But it is showing that Yash is answering the question
Ohhh ok
Here we can’t chat properly na
hmm
..
What to do....?
???
yash please clear the queue if u r busy . i will try to answer so that she shouldnt have to wait
hey jsut check the answer now
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