The figure represents the overhead view of a deck surrounding a hot tub. What is the area of the deck? Round to the nearest tenth.

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The figure represents the overhead view of a deck surrounding a hot tub. What is the area of the deck? Round to the nearest tenth.

Mathematics
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what's the area of the blue circle?

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Other answers:

26.4?
that's the radius I think
either that or the diameter they didn't label the drawing too well
2189.56 ?
I think because the line goes through the whole circle, 26.4 is the diameter
oh ok
how do i find the area of the blue circle?
area = pi*r^2 r = radius
radius = diameter/2
1.6328?
how did you get that
26.4/2= 26 2/5 3.14*26 2/5^2=6.5312
oops. I am not sure.. did i get it right now?
26.4/2= 26 2/5 is false
26.4/2= 13 1/5
it should be 26.4/2= 13.2 your calculator is in one strange mode, idk
yeah 13 & 1/5 = 13.2
so 3.14*13.2^2= 547 71/625?
or 547.1136? my calc is weird
yeah roughly 547.1136
that's the blue circle area
in terms of pi, it is 174.24pi
ok
do the same with the larger circle
3.14*8.8^2?
8.8 isn't the radius, but it's part of it
what is the radius?
radius of larger circle = (radius of smaller circle) + 8.8
try to imagine the smaller circle erased for a second
so 555.9136?
547.1136+8.8= 555.9136
547 is way too big
the smaller radius was 13.2
oops, 13.2+8.8=22
use that radius to find the area
1519.76
pi*r^2 3.14*22= 1519.76 right?
22^2
now you subtract the two areas
1519.76-547.1136= 972.6464
so 973.1 ft2 (:
Find the measure of <3 120° 30° 45° 90°
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isn't it 90 degrees?
close
you bisect it though
45 degrees?
yeah
Find the measure of is it 45?
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wait 60?
your question is incomplete
oops. find the measure of <1
why 60
i did 360/6
good
ok. i cant remember how to do this What is the area of the circle if XY = 17 in.?
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do i * 17 by pi?
its my last question i need help with
what is the radius
i forget how to find it uhm..
well XY = 17 is the diameter
ohh 17/2?
17/2= 6.5?
3.14*6.5= 20.410?
17/2 is not 6.5
you're thinking of 13/2
17/2= 8 1/2
ohmy idk y i put 6, my calc says 8
3.14*8.5= 26.69
and then you have to square the radius
8.5 right?
72.25
or 72 1/4
multiply 72.25 with pi to get the area
oh yeah, 226.865
that number is big though. what do i do next i forget?
what are your answer choices?
17π in2 72.25π in2 36.75π in2 8.5π in2
so just undo that last step we did
and leave it in terms of pi
ohh ok
thanku so much!!
np

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