**area of a sector**is degrees ----------- x pi x R^2 360 because like, you have the**area of a circle**, but you only want**a**part**of**it so you times it by the fraction you want. if...1 Answers · Education & Reference · 19/11/2010

... the 31.41 is the area of the circle , then we don't need any sector information because we know that Area of a circle = π * radius² π * radius² = 31.41 Divide both sides...

1 Answers · Education & Reference · 03/04/2011

formula is

**A**= 1/2 r^2 (theta) where theta is in radians so 73 = 1/2 (9.2)^2 (theta) solve for theta and you're done i got 1.724951 Answers · Education & Reference · 14/12/2010

ar

**of sector**= (angle/360) * pie * r^2 50 = 70/360 * pie *r^2 (50*360) / (70*pie) = r^2 r^2 = 81.81 (take it as 81 for simplicity) r = 92 Answers · Education & Reference · 25/05/2009

Hello- Ok, check it out: The formula for

**a sector of a circle**is**A**= 1/2 r^2 * (theta) where:**A**=**area**r = radius theta = angle**of sector**in radians. It's "theta"...1 Answers · Education & Reference · 06/11/2012

...2 If you have five sectors , multiply the

**sector area**by 5, Total**area**= 5 * 56.55 = 282.74 ft^2 I would suggest looking at http://www.**area**-**of**-**a**-**circle**.com, it will help you verify similar homework questions...6 Answers · Education & Reference · 31/03/2012

Imagine if the

**sector of circle**is**a**whole**circle**,WHICH ANGLE IS 360 DEGREES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! the**area of**the whole**circle**should be 12.6x12.6x(22/7)=498.96...1 Answers · Education & Reference · 29/01/2010

For

**a circle of**radius r, the**area of a sector**subtending t radians at the centre is: r^2 t...2 Answers · Education & Reference · 09/05/2008

### A sector of a circle has central angle θ = 4π/3 and area 50π/3 ft2. Find the radius of the circle .?

A = (ø/2)r^2 50π/3 = ((4π/3)/2)r^2 50π/3 = (2π/3)r^2 (50π/3)(3/2π) = r^2 50/2 = r^2 25 = r^2 r = 5 m03292013

1 Answers · Education & Reference · 04/04/2013

... pi*r^2. so the

**area of**any**sector**is just the equivalent fraction**of**the**area**. the full**circle**is 360 degrees...360 times the total**area**.**A**= theta/360 * pi * r^2**A**...1 Answers · Education & Reference · 07/06/2013