# Yahoo Web Search

related to: sector

1. ### Radius of a sector of a circle?

1: area of a sector =90/360xπ(r^2) 4π=0.25π(r^2) cut out π 4/0.25=r^2 taking square root on both sides: r=4 so the answer is 4cm. 2: area of a sector =90/360xπ(r^2) 9/8πcm^2=45/360π(r^2) following the same procedure as...

2 Answers · Science & Mathematics · 11/01/2013

2. ### Find the area of sector AOB - triangle AOB in this figure. O is the center of the circle, OB = 100m.?

Hi, Sector AOB has a 120 degree angle so is 1/3 of the circle. Its...

2 Answers · Science & Mathematics · 06/08/2013

3. ### How do you inscribe a circle into a sector ?

Imagine the sector in the x-y plane with radius R and let alpha be its angle. Suppose...where x = R - r. The line from the center perpendicular to a side of the sector creates a right triangle, showing that x sin(alpha/2) = r. ...

1 Answers · Science & Mathematics · 10/04/2008

4. ### Find Perimeter of Sector ?

The perimeter of the sector given  the angle to be 30° and radius 5 inches: 10 pi / 12 + 10 = 12.617993877991495 inches

6 Answers · Science & Mathematics · 04/04/2020

5. ### How are arc length and area of a sector related to proportionality?

sector x radian area = (r^2 x)/2 arc length = r x they are not propotional because Area / arc length = r/2 , (it's not a constant)

1 Answers · Science & Mathematics · 15/04/2015

6. ### how do you find the area of a sector of a circle?

A sector is formed by two radii of a circle and the arc the two ...central angle is x and the radii are each r,the are of sector is simply area of entire circle times x/360, if angle is in ...

2 Answers · Science & Mathematics · 19/05/2011

7. ### geometry problem: circle inscribed in a sector ?

... the two straight sides bordering the sector are tangent to the circle, we know that the right triangle...4*csc(40) + 4 = 4*(1 + csc(40)) cm. The area of the sector is therefore (1/2)*r^2*(theta) = (1/2)*[4*(1 + csc(40...

5 Answers · Science & Mathematics · 08/01/2014

8. ### the angle of sector is 30 degree and the radius is 15 cm. what is the area of the sector in square centimeter?

Sector angle ,θ= 30° =π×30°/180° = π/6 radians Radius, R= 15 cm Area A= (1/2)R²θ where θ is in radians Hence A= (1/2)×15²× π/6 =58.90 cm²

2 Answers · Science & Mathematics · 27/02/2017

9. ### Area of sector of a circle?

The area of sector is equal to the degree(70) over 360 degrees, multiples by pi...

3 Answers · Science & Mathematics · 20/03/2013

10. ### the angle of sector is 30 degree and the radius is 15 cm. what is the area of the sector in square centimeter?

Sector angle ,θ= 30° =π×30°/180° = π/6 radians Radius, R= 15 cm Area A= (1/2)R²θ where θ is in radians Hence A= (1/2)×15²× π/6 =58.90 cm²

4 Answers · Science & Mathematics · 12/07/2013