please solve this question
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Surface area of remaining solid = 6L2 - πr2 + πrℓ, where r and l are the radius and slant height of the cone.
ℓ = √(72 + 142) = 7√5
L = 14 cm
r = 14/2 = 7 cm
Surface area of remaining solid = (1022 + 154√5) cm2
ℓ = √(72 + 142) = 7√5
L = 14 cm
r = 14/2 = 7 cm
Surface area of remaining solid = (1022 + 154√5) cm2
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debadityadutta1:
'Surface area of remaining solid = (1022 + 154√5) cm2'how?
1022+154*2.236=13.66(approx.)
You r grown enough, solving this kinds of prblm.. At least gain the knowledge how to calculate.. if u can't then take the help of calculator..
ok thanks
sorry i did'nt notice you had given the formula
And I definitel can calculate my mistake only
It's not abt mistakes, it's abt the sum to be calculated
i unnderstand
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