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1. ### Grade 12 calculus question?

...with hypotenuse R has the greatest area? When you cut the sector and join the ends to form the cone, the cross section is a triangle that...

1 Answers · Science & Mathematics · 22/03/2015

2. ### Trigonometry Help Grade 12!?

... think the angle down at the corner is pi/4. Then the whole circular sector goes through an angle of 3pi/4. A = (1/2)theta*r^2 Initially...

2 Answers · Science & Mathematics · 14/01/2013

3. ### integration question?

...θ ≤ 2π), (r₁ ≤ r ≤ r₂), (z₁ ≤ z ≤ z₁+h) Sector of cylinder (radius r₁, height h) with central angle α (θ₁ ≤ θ ≤ θ...

1 Answers · Science & Mathematics · 28/06/2017

... to get the sin of most of the angles And through the sector 1, cos angle works the same way in reverse. (actually, cos angles ...

1 Answers · Science & Mathematics · 03/05/2012

5. ### 2 unequal overlapped circles,if the area of overlap is half the small circle area,what is the 2 radii ratio?

...segment of big circle A=A1-A2, where A1 is area of sector, A2=y1*x1 is area of triangle; A1=2∫0.5·R·dL, where...

2 Answers · Science & Mathematics · 18/07/2007

6. ### Math Circle Geometry Help?

...cm and that triangle ABC has area (1/2)(6)(6) = 18 cm^2. Now sector BEF of the interior triangle, since angle EBF is 90, has...

2 Answers · Science & Mathematics · 06/05/2012

7. ### Simple Trig questions (need steps)?

... answer: Area of segment = As - At Area of a sector: As=1/2*r^2 * theta Area of a triangle At = 1/2 * base * height...

3 Answers · Science & Mathematics · 26/11/2009

8. ### AREA CIRCLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!?

40 degrees if 11.1111% of the circle but without one more number I see no way to solve it. The circle can be any size and still be 40 degrees. ℬ ℋ

3 Answers · Science & Mathematics · 12/05/2013

9. ### Finding radius of a circle given the perimeter and the area.?

kk so to find the answer you have to use the formulae pie times the radius squared = the area. so if you Divide the area by pie (3.1514) you get the radius squared so you find the Square rout of the answere. here you go 48/pie=15.28 so you find the square root of 15.28 = 3.9 so the...

2 Answers · Science & Mathematics · 13/08/2009