# Yahoo Web Search

1. ### Use a graphing utility to approximate, to two decimal places, the angles θ?

=========== I'm not sure why you need a calculator to solve this. Is there more to the question or...which preceded it? Simple answer: A sector of 90 degrees or π/2 radians is...

1 Answers · Science & Mathematics · 11/07/2013

2. ### Mathematics Area and Perimeter?

...it's 2rt5/sq.rt pi, or use a calculator . It's a messy answer. :( At any rate, we...60 degrees is 1/6 of a circle. Use the formulas to find area and perimeter of a whole circle with r=8cm...

3 Answers · Science & Mathematics · 08/09/2008

3. ### How can you find the area of the sector with only length of arc and the inner angle?

I don't have a calculator with me just now, but this should work : If you use the formula: length of arc = angle/360 * pi * diameter Re...radius! Then use the formula : area = angle/360 * pi * r^2 ( using the...

2 Answers · Education & Reference · 10/03/2011

4. ### Question on C2, very confused?

...opposite the angle AOB and a =5, b=5 Therefore plug...the answer you got into the calculator cos(theta)=7/25 theta = arccos... c)The formula for the area of the sector is given by: A ...

2 Answers · Science & Mathematics · 27/04/2008

5. ### Geometry Help!!! (BEST ANSWER 10pts.)?

...region = Area of the sector - Area of the triangle = 113.097 - 72 = 41...: Wow, you have a bike? I have always ... the value directly from the calculator . By the way, are you...

2 Answers · Science & Mathematics · 05/06/2009

6. ### lol another question on C2 then i'm done?

... that 36=25+25-50cos(AOB) => cos(AOB)=7/25 Use a calculator , arccos(7/25)=1.287 The area is 1.287/(2pi)*pi*25=16.... Area of triangle is 12. So the shaded area is 16-12=4.

1 Answers · Science & Mathematics · 27/04/2008

.... Making a chart of SOME θ and r values that produce a sector area of ≐ 26 m²... Given a value for θº, r would be ... θ...

3 Answers · Science & Mathematics · 22/11/2010

8. ### Precal with Trig homework help?

... could always start by doing a ratio. 2*pi radians creates an area of pi * r^2 1/6 radian is an area of ...one or you could put it in your calculator and get it down to 1 or 2 decimals...

3 Answers · Science & Mathematics · 08/09/2013

9. ### Help with another trig problem?

... the area of the triangle = twice the area of the sector = 2 (½ r² θ) = r²...tan θ = 2θ You can get the solution from a graph, or from a calculator . Put in a value for θ (in radian mode), and...

2 Answers · Education & Reference · 24/01/2011

10. ### Any help at all is appreciated?

A =Pi r^2 therefore A =100Pi m^2 but only 135 degrees are shaded therefore 135/360 of the circle is shaded. A =(135/360)(100Pi) sorry did not have a calculator .

1 Answers · Science & Mathematics · 30/10/2007