Question

Find the area of the blue sector. Use 3.14 for pi and round to the nearest hundredth.
A)0.52 in2
B)3.66 in2
C)25.64 in2
D)128.22 in2

Answer 1

Area of a the blue section would be a proportion, if that is the correct term. let me write down the steps

Answer 2

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Answer 3

degree/360 * x/area of circle

Answer 4

http://www.regentsprep.org/regents/math/geometry/GP16/CircleSectors.htm

this is where I am getting the info, and it also makes sense

Answer 5

i dont understand , how do you set up the problem ?

Answer 6

I'm about to send you the basic form of setting up

Answer 7

that should of been 360 not 36

Answer 8

from the steps above they derive the formula I put in black

Answer 9

would it be B ?

Answer 10

I didn't get B, Let me check that I have the numbers correct; what did you do? show me your steps

Answer 11

No, I still don't get B, i doubled checked. It's another option listed there.

Answer 12

Oh, and I'd like to add, that the equation isn't always n/360 degrees; it will depend if the angle they are giving you is in either degrees or rad. if it is in rad, then 360 degrees=2pi