The surface area of a sphere of radius 5 cm is five times the curved surface area of a cone of radius 4 centimetre. Find the height of the cone.
Answers
Answered by
6
Hey mate!!! ^_^
Here is your answer!!
♥♥hope it helps uhh!!♥♥
and wish you a very....
*☆*¨*★*..*☆*¨*★*
Happy
N e w Y e a r
*☆*¨*★*..*☆*¨*★*
。
+ 。☆・ +
・゜☆・ + ｡☆ °
+ ☆。☆ 。+ ☆
ﾟ |。・/☆ 。+
r⌒|ヽﾟ/。／・☆
|丶| /`／。☆
|==`-/∠_〉。+
|======／
|====／
|==／
|／
Here is your answer!!
♥♥hope it helps uhh!!♥♥
and wish you a very....
*☆*¨*★*..*☆*¨*★*
Happy
N e w Y e a r
*☆*¨*★*..*☆*¨*★*
。
+ 。☆・ +
・゜☆・ + ｡☆ °
+ ☆。☆ 。+ ☆
ﾟ |。・/☆ 。+
r⌒|ヽﾟ/。／・☆
|丶| /`／。☆
|==`-/∠_〉。+
|======／
|====／
|==／
|／
Attachments:
Answered by
5
surface area of sphere (S AR) = 4*(22/7)*5*5
C. S. A OF CONE (C AR) = (22/7)*4*l (l = salient height)
Then, Sar=5Car
4*(22/7)*5*5=5*(22/7)*4*l
l=5 cm
then l*l= h*h +r*r ( h = height , r = radius)
which gives h= 3 cm
C. S. A OF CONE (C AR) = (22/7)*4*l (l = salient height)
Then, Sar=5Car
4*(22/7)*5*5=5*(22/7)*4*l
l=5 cm
then l*l= h*h +r*r ( h = height , r = radius)
which gives h= 3 cm
Similar questions