Question

Can anyone help with a geometry question? (Questions is inside) [WILL Medal & Fan]

Answer 1

@Mehek14 quick help?

Answer 2

is it multiple choice

Answer 3

The photo of it is right there @Emmily1127

Answer 4

i saw it

Answer 5

its the third one

Answer 6

How'd you get that? What made you choose the third one?

Answer 7

because on one side of the square there is a 2 so there would be one on the other side and the r stands for the dot so its the 2 2s added equals four plus the dot

Answer 8

Ok, I just don't want to get it wrong. Can you help with one more?

Answer 9

sure

Answer 10

what is it

Answer 11

im not quite sure but i think its 84

Answer 12

@phi have an idea?

Answer 13

I don't understand your first question, the area of the "shaded sector of the circle"
The only "shade" I see is the blue and that is not part of the circle.
The area of the blue is the area of the square (= 2*2 or 4) minus the area of of the circle
the circle has a radius of 1 (½ of the square's side), and so its area is pi*r*r = pi*1*1= pi
so the area of the blue is 4-pi

Answer 14

for the two circles in a rectangle, they say the area of each circle is 196 pi
the formula for the area of a circle is pi r^2
so write
\[ \pi r^2 = 196 \pi\]
divide both sides by pi to get
\[ \frac{\pi}{\pi}r^2= 196\frac{\pi}{\pi} \\ r^2=196\]
you can find the radius of the circle by take the square root of both sides

Answer 15

So the first one wouldn't be C, it'd be B.

Answer 16

Probably, but I would complain to your teacher because they are asking for the area of the sector of a circle, and the blue is not the area of the circle (but I think that is what they want)

Answer 17

can you find r using
\[ r^2= 196\]?

Answer 18

Uh yeah, didn't you say find the square root of 196? That would be 14

Answer 19

yes, and r is ½ of the diameter. so the diameter of the circle is 2*14 = 28

now we can find the sides of the rectangle
it is one circle wide so 28 wide
and two circles tall so 2*28 = 56
the perimeter is the sum of the distance all the way round, so
28+56 +28+56

Answer 20

168 Units.. Which is D!