=========== 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

...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

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

...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

...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

... 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

... 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

... 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

**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