anonymous
  • anonymous
help ! :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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YoloShroom
  • YoloShroom
whatcha need help with? ^_^
anonymous
  • anonymous
u back :)
anonymous
  • anonymous
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anonymous
  • anonymous
I gave u the answer all ready-_-
anonymous
  • anonymous
A=30 degrees B=60 degrees C=75 degrees
anonymous
  • anonymous
a=30 because it is a vertical angle b=60 because a+b+c= 180 and 30+90(right angle)=120+60=180 c=105 because it and 75 are supplementary
anonymous
  • anonymous
o whoops you are right c is 105 whoops
anonymous
  • anonymous
thanks :) @CasidyCat can you help me with more questions ! :)
anonymous
  • anonymous
A=60 B=Night night I'm such a dump right now but let me at some of dos questions
anonymous
  • anonymous
Lol auto correct
anonymous
  • anonymous
i can't even type right OMG!!!!!!!!!!
anonymous
  • anonymous
Sure! :)
anonymous
  • anonymous
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anonymous
  • anonymous
@CasidyCat
anonymous
  • anonymous
OK i would help and Iknow but I'm getting really lazy.'
anonymous
  • anonymous
a) It is a rectangle. Parallel to the base means that the shape is basically the same as the base. b)It looks like a square but it is safer to say rectangle because you can't tell which way it faces. Perpendicular would be the faces opposite to the base, so either the square or another rectangl|dw:1444100909891:dw|e.
anonymous
  • anonymous
ok next!
anonymous
  • anonymous
Circle A has a diameter of 8 inches, a circumference of 25.12 inches, and an area of 50.24 square inches. The diameter of circle B is 3 inches, the circumference is 9.42 inches, and the area is 7.065 square inches. Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points) Part B: Use the formula for area and solve for the value of pi for each circle. (4 points) Part C: What observation can you make about the value of pi for circles A and B? (2 points)
anonymous
  • anonymous
@CasidyCat
anonymous
  • anonymous
@CasidyCat
anonymous
  • anonymous
C=2pir a) 25.12/2=12.56/4=3.14 9.42/2=4.71/1.5=3.14 A=pir^2 b) 50.24/16=3.14 7.065/2.25=3.14 The value of pi is the same (3.14)
anonymous
  • anonymous
@CasidyCat
anonymous
  • anonymous
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anonymous
  • anonymous
a)3,240/30/24=4.5*2=9 (*2 because you /2 to find area of triangle) A/l/w=h/2 b)This would be the surface area. 30*15=450*2=900 30*24=720 24*9=226 900+720+226=2,846 To find surface area you take the area of each face and add them all together.
anonymous
  • anonymous
ok thanks :)
anonymous
  • anonymous
@Vocaloid hey! can you make sure the answers are correct? :)

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