A small mat is in the shape of a 225 degree-sector of a circle with diameter 7 m. Find the area covered by the piece of mat.
2007-08-25 19:34:11 · 4 answers · asked by Thereyahgo 1 in Science & Mathematics ➔ Mathematics
A = (225 / 360) π (3.5) ² m ²
A = 24.1 m ² ( to 1 decimal place)
2007-08-25 20:11:10 · answer #1 · answered by Como 7 · 1⤊ 0⤋
Ac = pi * ((7^2)/4)
Ac = (49pi)/4
(225/360)(49pi/4)
(5/8)(49pi/4)
(245pi)/32
ANS : about 24.053 m^2
if you go to http://mathforum.org/dr.math/faq/formulas/faq.circle.html
look at the bottom, and it will basically tell you the same thing i've already showed you.
2007-08-26 04:23:34 · answer #2 · answered by Sherman81 6 · 0⤊ 1⤋
area = 225/360*pi*(7/2)^2
=24.05 sqm
2007-08-26 02:49:00 · answer #3 · answered by niki einstien 2 · 0⤊ 0⤋
24.040 m^2
2007-08-26 02:37:35 · answer #4 · answered by peteryoung144 6 · 0⤊ 0⤋