Friday

September 19, 2014

September 19, 2014

Posted by **kyle** on Wednesday, July 9, 2014 at 10:33pm.

Find the ratio of their surface areas.

- math -
**Steve**, Wednesday, July 9, 2014 at 10:37pm4π(2r)^2 / 4πr^2 = 4

the square of the radius ratio

- math -
**kyle**, Wednesday, July 9, 2014 at 10:39pmFind the surface area of an orange with a 3'' radius.

- math -
**Steve**, Wednesday, July 9, 2014 at 11:53pmThe formula is above. Plug in r=3.

We will assume a smooth, rather than a dimpled, surface :-)

**Answer this Question**

**Related Questions**

college physics - Two solid spheres A and B are made from the same material. The...

college physics - Two solid spheres A and B are made from the same material. The...

physics - Two solid spheres A and B are made from the same material. The mass of...

Physics - Sphere 1 has surface area A1 and volume V1, and sphere 2 has surface ...

PHYSICS - A 494 kg uniform solid sphere has a radius of 0.390 m. Find the ...

calculus - 3. The radius r of a sphere is increasing at a constant rate of 0.04 ...

math - direct variation the surface area of a sphere varies directly as the ...

physics 12 - A hollow sphere us charged to 14uc .Find the potential(a) at its ...

math - 1. Sphere C(-2,1,-3), radius=7. T plane at (4,-2,-1)=? (a) 6x-3y+2z=0 (b...

calculus *improper integrals* - A hole of a radius of 1cm is pierced in a sphere...