Clalcualte the area of this quater circle?

2 ⤊

27 cm is the length

2007-12-11 03:59:03 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

if 27=quartercircumference
circumerence=27*4=108
2pi(r)=108
find (pi)r^2/4
r=sqrt(54/pi)
r=4.145992
pi(r)=54
54(r)/4=area
area = 55.97 sq cm

2007-12-11 04:07:13 · answer #1 · answered by Croasis 3 · 0⤊ 0⤋

27 is the length of what? radius? diameter? 15Â° arc?

2007-12-11 12:01:52 · answer #2 · answered by Philo 7 · 1⤊ 0⤋

1/4 pie x radius squared ie dividing the area of acircle by 4
]
1/4 x22/7x radius 27cm is now radius

2007-12-11 12:06:03 · answer #3 · answered by Lt. 3 · 0⤊ 0⤋

It's quite obvious, by your spelling skills that you not only need to do your own geometry, but pay more attention in english class, too!

2007-12-11 12:04:05 · answer #4 · answered by Anonymous · 1⤊ 0⤋