mckenzieandjesus
  • mckenzieandjesus
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
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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mckenzieandjesus
  • mckenzieandjesus
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mckenzieandjesus
  • mckenzieandjesus
@LegendarySadist @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
what's the area of the blue circle?

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More answers

mckenzieandjesus
  • mckenzieandjesus
26.4?
jim_thompson5910
  • jim_thompson5910
that's the radius I think
jim_thompson5910
  • jim_thompson5910
either that or the diameter they didn't label the drawing too well
mckenzieandjesus
  • mckenzieandjesus
2189.56 ?
jim_thompson5910
  • jim_thompson5910
I think because the line goes through the whole circle, 26.4 is the diameter
mckenzieandjesus
  • mckenzieandjesus
oh ok
mckenzieandjesus
  • mckenzieandjesus
how do i find the area of the blue circle?
jim_thompson5910
  • jim_thompson5910
area = pi*r^2 r = radius
jim_thompson5910
  • jim_thompson5910
radius = diameter/2
mckenzieandjesus
  • mckenzieandjesus
1.6328?
jim_thompson5910
  • jim_thompson5910
how did you get that
mckenzieandjesus
  • mckenzieandjesus
26.4/2= 26 2/5 3.14*26 2/5^2=6.5312
mckenzieandjesus
  • mckenzieandjesus
oops. I am not sure.. did i get it right now?
jim_thompson5910
  • jim_thompson5910
26.4/2= 26 2/5 is false
mckenzieandjesus
  • mckenzieandjesus
26.4/2= 13 1/5
jim_thompson5910
  • jim_thompson5910
it should be 26.4/2= 13.2 your calculator is in one strange mode, idk
jim_thompson5910
  • jim_thompson5910
yeah 13 & 1/5 = 13.2
mckenzieandjesus
  • mckenzieandjesus
so 3.14*13.2^2= 547 71/625?
mckenzieandjesus
  • mckenzieandjesus
or 547.1136? my calc is weird
jim_thompson5910
  • jim_thompson5910
yeah roughly 547.1136
jim_thompson5910
  • jim_thompson5910
that's the blue circle area
jim_thompson5910
  • jim_thompson5910
in terms of pi, it is 174.24pi
mckenzieandjesus
  • mckenzieandjesus
ok
jim_thompson5910
  • jim_thompson5910
do the same with the larger circle
mckenzieandjesus
  • mckenzieandjesus
3.14*8.8^2?
jim_thompson5910
  • jim_thompson5910
8.8 isn't the radius, but it's part of it
mckenzieandjesus
  • mckenzieandjesus
what is the radius?
jim_thompson5910
  • jim_thompson5910
radius of larger circle = (radius of smaller circle) + 8.8
jim_thompson5910
  • jim_thompson5910
try to imagine the smaller circle erased for a second
mckenzieandjesus
  • mckenzieandjesus
so 555.9136?
mckenzieandjesus
  • mckenzieandjesus
547.1136+8.8= 555.9136
jim_thompson5910
  • jim_thompson5910
547 is way too big
jim_thompson5910
  • jim_thompson5910
the smaller radius was 13.2
mckenzieandjesus
  • mckenzieandjesus
oops, 13.2+8.8=22
jim_thompson5910
  • jim_thompson5910
use that radius to find the area
mckenzieandjesus
  • mckenzieandjesus
1519.76
mckenzieandjesus
  • mckenzieandjesus
pi*r^2 3.14*22= 1519.76 right?
mckenzieandjesus
  • mckenzieandjesus
22^2
jim_thompson5910
  • jim_thompson5910
now you subtract the two areas
mckenzieandjesus
  • mckenzieandjesus
1519.76-547.1136= 972.6464
mckenzieandjesus
  • mckenzieandjesus
so 973.1 ft2 (:
mckenzieandjesus
  • mckenzieandjesus
Find the measure of <3 120° 30° 45° 90°
1 Attachment
mckenzieandjesus
  • mckenzieandjesus
isn't it 90 degrees?
jim_thompson5910
  • jim_thompson5910
close
jim_thompson5910
  • jim_thompson5910
you bisect it though
mckenzieandjesus
  • mckenzieandjesus
45 degrees?
jim_thompson5910
  • jim_thompson5910
yeah
mckenzieandjesus
  • mckenzieandjesus
Find the measure of is it 45?
1 Attachment
mckenzieandjesus
  • mckenzieandjesus
wait 60?
jim_thompson5910
  • jim_thompson5910
your question is incomplete
mckenzieandjesus
  • mckenzieandjesus
oops. find the measure of <1
jim_thompson5910
  • jim_thompson5910
why 60
mckenzieandjesus
  • mckenzieandjesus
i did 360/6
jim_thompson5910
  • jim_thompson5910
good
mckenzieandjesus
  • mckenzieandjesus
ok. i cant remember how to do this What is the area of the circle if XY = 17 in.?
mckenzieandjesus
  • mckenzieandjesus
1 Attachment
mckenzieandjesus
  • mckenzieandjesus
do i * 17 by pi?
mckenzieandjesus
  • mckenzieandjesus
its my last question i need help with
jim_thompson5910
  • jim_thompson5910
what is the radius
mckenzieandjesus
  • mckenzieandjesus
i forget how to find it uhm..
jim_thompson5910
  • jim_thompson5910
well XY = 17 is the diameter
mckenzieandjesus
  • mckenzieandjesus
ohh 17/2?
mckenzieandjesus
  • mckenzieandjesus
17/2= 6.5?
mckenzieandjesus
  • mckenzieandjesus
3.14*6.5= 20.410?
jim_thompson5910
  • jim_thompson5910
17/2 is not 6.5
jim_thompson5910
  • jim_thompson5910
you're thinking of 13/2
mckenzieandjesus
  • mckenzieandjesus
17/2= 8 1/2
mckenzieandjesus
  • mckenzieandjesus
ohmy idk y i put 6, my calc says 8
mckenzieandjesus
  • mckenzieandjesus
3.14*8.5= 26.69
jim_thompson5910
  • jim_thompson5910
and then you have to square the radius
mckenzieandjesus
  • mckenzieandjesus
8.5 right?
mckenzieandjesus
  • mckenzieandjesus
72.25
mckenzieandjesus
  • mckenzieandjesus
or 72 1/4
jim_thompson5910
  • jim_thompson5910
multiply 72.25 with pi to get the area
mckenzieandjesus
  • mckenzieandjesus
oh yeah, 226.865
mckenzieandjesus
  • mckenzieandjesus
that number is big though. what do i do next i forget?
jim_thompson5910
  • jim_thompson5910
what are your answer choices?
mckenzieandjesus
  • mckenzieandjesus
17π in2 72.25π in2 36.75π in2 8.5π in2
jim_thompson5910
  • jim_thompson5910
so just undo that last step we did
jim_thompson5910
  • jim_thompson5910
and leave it in terms of pi
mckenzieandjesus
  • mckenzieandjesus
ohh ok
mckenzieandjesus
  • mckenzieandjesus
thanku so much!!
jim_thompson5910
  • jim_thompson5910
np

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