anonymous
  • anonymous
Find H. V = 768 cm3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
dumbcow
  • dumbcow
Volume = areaBase *h h = areaBase/volume volume = 768 we need to find areaBase for this figure the base or top and bottom is a right triangle the triangle has one side of 8 and diagonal side of 17 area of triangle = 1/2*length*height find height of triangle using pythagorean theorem a^2 +b^2 = c^2 so 8^2+b^2 = 17^2 find b, then use that to find area of triangle
anonymous
  • anonymous
i got 15

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dumbcow
  • dumbcow
correct areaTriangle = 1/2*8*15
anonymous
  • anonymous
does 15 as height?
dumbcow
  • dumbcow
oops i made a mistake h=volume/areaBase
dumbcow
  • dumbcow
yes 15 is height of triangle
anonymous
  • anonymous
dumbcow
  • dumbcow
what do you get for an answer for H?
anonymous
  • anonymous
192
dumbcow
  • dumbcow
how did you get 192?
anonymous
  • anonymous
768=1/2*8*H
dumbcow
  • dumbcow
be careful there are 2 equations one is for 2-dimensional triangle (The base) one is for 3-dimensional prism 768 = (AreaTriangle)*H AreaTriangle = 1/2*8*15
anonymous
  • anonymous
i got 12.8
dumbcow
  • dumbcow
correct
anonymous
  • anonymous
ok can u help me with the next question
dumbcow
  • dumbcow
Volume = areaBase*Height 896 = areaBase*24 areaBase = 896/24=112/3 Base is a hexagon, but can be split up into 2 trapezoids Area of trapezoid = 1/2*h*(b1+b2) = 112/3 b1 =12 b2 = 20 solve for h
dumbcow
  • dumbcow
wait another mistake areaTrapezoid = 1/2*areabase = 1/2*112/3 = 112/6=56/3
dumbcow
  • dumbcow
sorry i gotta go good luck answer is 1.166 so you can check

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