Monday

December 22, 2014

December 22, 2014

Posted by **danielle** on Monday, May 6, 2013 at 1:03pm.

- Geometry -
**danielle**, Monday, May 6, 2013 at 1:15pmThe surface area of a cone is 16.8pi in squared. The radius 3 in. What is the slant height?

- Geometry -
**Steve**, Monday, May 6, 2013 at 2:33pmfor the volumes, just subtract the smaller from the larger:

π/3 (81)(5) = π/3 (36)(5) = 75π

area = πr(r+s)

16.8π = π(3)(3+s)

5.6=3+s

s=2.6

s cannot be less than r.

Evidently you do not want to include the base of the cone, so

16.8π = πrs

16.8π = 3πs

s = 5.6

**Answer this Question**

**Related Questions**

Calculus - Given a right circular cone, you put an upside-down cone inside it so...

Math - A right circular cylinder with a height of 20 cm and a right circular ...

calculus - Given a right circular cone, you put an upside-down cone inside it so...

Geometry - Infinitely many different sectors can be cut from a circular piece of...

geometry - 11. Infinitely many different sectors can be cut from a circular ...

math - Two right circular cone, one upside down in the other. The two bases are ...

Math - Please Help - A right circular cone has a volume of 140 in^3. The height ...

math - Consider the right circular cone shown. if the radius of the circular ...

math - Consider the right circular cone shown. If the radius of the circular ...

math - Consider the right circular cone shown. If the radius of the circular ...