I really dont get this stuff.
2007-07-24 06:59:05 · 3 answers · asked by babyruth45304 2 in Science & Mathematics ➔ Mathematics
The formula for the area of a sector is:
A = ½ r² θ, where r is radius and θ is angle.
So, we just plug in the values and simplify
A = ½ 6² (π/4)
A = ½ 36 (π/4)
A = 9π / 2 ≈ 14.14 sq. units.
2007-07-24 07:07:32 · answer #1 · answered by C-Wryte 4 · 0⤊ 0⤋
Remember that the area of a circle is pi*r**2. So the area of a sector of angle theta is (theta/2*pi)*pi*r**2 (there are 2*pi radians in a circle so theta/2*pi is the fraction of the circle that is taken up by the sector in question). So the area becomes (theta/2)*r**2
2007-07-24 07:13:31 · answer #2 · answered by Captain Mephisto 7 · 0⤊ 0⤋
a of sector = x/360 times (pi r-squared)
easy stuff.
2007-07-24 07:08:27 · answer #3 · answered by lauren 1 · 0⤊ 0⤋