The formula for calculating the area of the sector is:
(Angle of sector/360)* pi* radius squared.
For your example this would be
72/360* pi*35*35. which equals=769.69cm^2.
2007-02-02 01:28:26
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answer #1
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answered by The exclamation mark 6
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Here's how you do that. Divide 360° by 72°. That gives you 5. There would be 5 of these sectors in a full circle. The formula for the area of a circle is pi time the radius squared. So multiply pi (3.14159265359) by 35² (1225) and divide that by 5.
Your answer is: 769.69020013 square centimeters.
2007-02-02 01:56:12
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answer #2
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answered by Anonymous
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A circle is 360 degrees, therefore the sector made by a
72-degree angle constitutes 72/360 of the total area :
A = (72/360) * (pi * 35 ^ 2) = 769.3 cm^2
pi = 3.14
2007-02-02 01:32:51
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answer #3
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answered by Sassan 2
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Convert 72° to radians
72(π/180)
12 is the common factor of 72 and 180
72/12 = 6
180 / 12 = 15
6π/15 radians
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Area of a sector formula
A = 1/2 r² Θ
A = 1/2 (35)² (6π/15)
A = 1/2 (1225)(18.84955592/15)
A = 1/2 (1225)(1.256637061)
A = 1/2(1539.3804)
A = 769.6902001
A = 769.69cm squared
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2007-02-02 03:09:22
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answer #4
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answered by SAMUEL D 7
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heat canines! an astronaut question. to simplify the respond, enable's anticipate the planets P, Q and earth lie on a 'on the instant' line which supplies you 2 available configurations: a million. Planet P.....Earth....Planet Q or 2. Planet Q.....Planet P.....Earth so for project a million in basic terms upload the two distances, giving: 6.9 X 10^7 + 9.2 X 10^7 = sixteen.a million x 10^7 or a million.61 x 10^8 Ans: a million.61 x 10^8 km project 2, subtract, giving: 9.2 X 10^7 - 6.9 X 10^7 = 2.3 x 10^7 km Ans: 2.3 x 10^7 km Viola!
2016-11-24 19:03:57
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answer #5
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answered by Anonymous
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area of sector=(x/360)*pi*r^2=(x/360)*area of circle
area=(72/360)*3.14*35*35
=769.3sq cms
2007-02-02 01:44:57
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answer #6
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answered by iron muncher 3
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change 72 degrees into radians
72 x pi/180 = 2pi/5
then use the formula
A= r^2 x angle /2
A=1225(2pi/5)/2
A=1538.39/2
A=769.2 sq. cm.
2007-02-02 01:31:28
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answer #7
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answered by duntoktomee 2
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