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Which of the following expressions shows the area, in square inches, of the circle? (π = 3.14) 3 ⋅ 3.14 ⋅ 22 3.14 ⋅ 32 3.14 ⋅ 22 3.14 ⋅ 3
Well we know the diameter.
And we need the radius.
Do you know what the radius is?
The diameter is 6 so the radius is 3 the formula for the area of a circle is 2radius squared themes pi so three squared times pi is nine pi
is the radius 4 inches?
or 3 inches?
The radius is 3 because the line going through the center is 6 inches.
Do u see how the line with the length of six passes through the center?
Divide it by two because the radius is half the diameter
I'm not sure why it isn't one of the options
oh OK so its none of the answer choices :/ @Plasmataco
It should be 9 times 3.14
i'll ask for help ;) @jim_thompson5910
Ok. Don't use me as a source too much. @jim_thompson5910 is probably a better source because I'm Only 13
this is a review and im bad at math :b
I'm guessing choice B is supposed to say \[\Large 3.14 \cdot 3^2\] ? or no?
so its b? @jim_thompson5910
Oh yeahhhhh. It is the highest possibility
OK thanks! :)
yeah it's B since you use the area of a circle formula \[\Large A = \pi*r^2\]