Comments on: Help. I need the width of a round room that totals 675 Sq. FT.

By: rohan

rohan — Tue, 30 Nov 1999 00:00:00 +0000

if its round, it cnt hv width,

it has a radius

wht u sayin totals 675 sq fts, so did u calcuate is by pi* radius *(power 2).

Dave — Tue, 30 Nov 1999 00:00:00 +0000

Area = pi * r²

r = sqrt(Area/pi)

r = sqrt(675/pi)

width = 2*r

width = 2*sqrt(675/pi) ~~ 29.316150714175195295183077370301

Tommy12oz — Tue, 30 Nov 1999 00:00:00 +0000

area of room= pi * radius^2
pi*r^2=675
r^2=214.859
r=14.6581
width of room=2*r
WIDTH OF ROOM=29.31 APPROXIMATE

Wazeem A — Tue, 30 Nov 1999 00:00:00 +0000

By width u mean diameter right

area = 675 = pi(radius)^2
so radius=sqrt(675/pi)
so width of room= 2*radius which comes to be about 29.2

rwbblb46 — Tue, 30 Nov 1999 00:00:00 +0000

A=pi*r^2

r^2=A/pi =675/3.14=214.97

take square root Ans. 14.66 radius

amber_socci — Tue, 30 Nov 1999 00:00:00 +0000

well the area of a circle is a=pi*r^2
so 675ft^2= 3.14*r^2
215=r^2
r= ~14.66

If you are creating this problem you may want to make it so that the students get a clear number, not .66. just a suggestion.