SOLUTION: find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft
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-> SOLUTION: find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft
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Question 180200This question is from textbook glencoe Geometry
: find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft This question is from textbook glencoe Geometry
You can put this solution on YOUR website! find the radius of a cone given the surface area and slant height. round to the nearest tenth T=359ft^2 , l=15 ft
:
the surface area formula: SA =
Where
r = radius
h = altitude
;
However we are given the slant height (l):
l =
so we can just substitute l for that in the formula
SA = pi * r * l
so we have:
pi * r * 15 = 359
r =
r = 7.618 ~ 7.6 ft
