2007-07-23 14:17:49 · 6 answers · asked by jennifer f 1 in Science & Mathematics ➔ Mathematics
homework?
2007-07-23 14:20:46 · answer #1 · answered by ezioldschool 2 · 0⤊ 0⤋
Surface area = 4 * pi * (27.6/2)^2
2007-07-23 14:21:42 · answer #2 · answered by andyg77 7 · 0⤊ 0⤋
The surface area of a sphere of radius r is
A = 4*pi*r^2
So, just convert your diameter to a radius, and plug it into the equation.
2007-07-23 14:21:31 · answer #3 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
entire floor area (t.s.a) of a hemi-sphere is two pi r2 + pi r2 = 3 pi r2. i.e (this is) t.s.a = pi x 3x 5/2x 5/2 = 25/4 x 3 x pi cm2 = seventy 5/4 pi cm.2 for this reason t.s.a is in terms of pi seventy 5/4 pi cm2
2016-10-22 11:45:59 · answer #4 · answered by baumgarter 4 · 0⤊ 0⤋
d=27.6
r=27.6/2=13.8
SA=4(pi)r^2=4(pi)(13.8^2)=761.76(pi) square inches
2007-07-23 14:23:45 · answer #5 · answered by supercrazyman3000 1 · 0⤊ 0⤋
surface area of a sphere (SA) = 4pi (radius)^2
diameter=27.6
radius=d/2 = 13.8
SA = 4pi (13.8)^2
SA= 761.76 pi inches squared
2007-07-23 14:22:56 · answer #6 · answered by Mr. Engr. 3 · 0⤊ 0⤋