what is the formula to find the volume of a trapazoid?
595914
You find the area of the trapezoid (the base of the figure) and then multiply by the height of the figure.
325762
Volume of pyramid = 1/3 x base area x height\nArea of trapezoid = 1/2 x sum of parallel sides x height\n1/3 x [1/2 x (20 + 28) x h] x 36 = 3168\n...\nh = 11 cm.
264303
For a trapezoid? its a 2D figure so there are only area and perimeter.  Area is A= 1/2(base1 + base2)height or A= ((base1 + base2)height)/2
96858
erm the volume of the circle would be the same, the volume of the cylinder would be (pi)r*r*h (r=radius, h=height)
461296
Volume of a prism or cylinder = Area of the base (a circle in this case) * Height\n\nV = pi*r^2 * h,  (V=volume, r=radius=diameter/2, h=height)\nV = pi*0.75^2 * 9\nV = 15.9 ft^3
738861
If you are talking about a 3-D rectangle,\n\nThe volume of a rectangle is height times width times depth.  \n\nYou can also use base times height if its easier.\n\nhope this helps!
927283
NaBH4 + 2H2O → NaBO2 + 4H2\n\nthe moles of NaBH4 3*10^-3 * 1 = 3*10^-3 \nthe moles of H2 : 4*3*10^-3 = 12*10^-3\nthe volume of H2 : 12*10^-3 * 22.4 = 0.2688L\n\n2HCl + Zn => ZnCl2 + H2\n\nthe moles of Zinc : 1/65 moles\nthe moles of H2 : 1/65 moles\nthe volume of H2 : 1/65 * 22.4 = 0.3446 L
843623
To work out the volume of solvent needed to make a 10mM (0,01M) solution use the formula:\n\nKnown mass of solid\n---------------------------------     = volume of solvent needed (in litres)\n0.01  x  Relative Mass of solid
797921
"A trapezoid is a 4-sided figure with one pair of parallel sides. To find the area of a trapezoid, take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2." The height is the perpendicular distance between the two parallel bases.\n\nArea (trapezoid) = 1/2 h (b1 + b2) , where b1 and b2 are the lengths of the two parallel sides, and h is the perpendicular distance between them.
22565
Step 1 is to find the volume of each of the individual spheres using formula (4/3)*pi*r^3\nSphere A diameter 2 cm\nSphere B diameter 3 cm\nsphere c diameter 4 cm\n\nSphere A Volume =(4/3)*pi*(1 cm)^3= approx 4.189 cm^3\nSphere B Volume =(4/3)*pi*(1.5 cm)^3= approx 14.137 cm^3\nSphere C Volume =(4/3)*pi*(2 cm)^3= approx 33.510 cm^3\n\nadd them together to get a volume of 51.836\n\nnow to find radius of new sphere.\n\n51.836=(4/3)*pi*r^3\n(51.836)*(3/4pi)=r^3\n12.375=r^3\nr=approx 2.313\n\ntherefore the diameter of the new sphere is about 4.626 cm
521096
The volume of a tube or cylinder is the cross-sectional area times the height/length.  Therfore, A=pi*(d/2)^2...\n\nA = pi * (3/8in)^2 = 9*pi/64in^2\n\nSo...\n\nV = A * length\nV = 9*pi/64in^2 * 800ft*(12in/1ft)\nV = 9*pi/64in^2 * 9600in\nV = 4241.15in^3\n\nHope that helps :)
1087013
To find the area of a trapezoid, take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2.  Then, multiply by the depth (here, .5 for 1/2 foot deep) to get the volume.
525014
Let's make this very simple.\n\nTo measure the volume of a cylinder, you find the diameter of the interior portion of the cylinder.  Take that number and divide by two...that's your radius (r).  Now measure the height of the interior of your cylinder...that's your height (h).\n\nNow, take the radius (r) and the height (h) and plug them into the formula below:\n\nV = π*(r)*(r)*(h)\n\n(π equals roughly 3.1516)\n\nNow if your answer is in cubic inches, multiply V by .0036 for British gallons or .00433 for US gallons (yes, they are different).  If V is in cubic centimeters, multiply by .00022 (British) or .00026 (US).\n\nI don't know how to make it any clearer...good luck.
875857
find what?...the dimensions of the box with the most volume?\n\nArea = w^2 + 4wh = 1100 cm^2\nh = (1100 - w^2 ) / 4w\n\nVolume = h w^2 =\nV = w^2 * (1100 - w^2 ) / 4w \nV = w (1100 - w^2 ) / 4\nV = 275w - (w^3)/4\ndV/dw = 275 - (3/4)w^2\nlet dV/dw = 0\n(3/4)w^2 = 275\n\nw = 19.15 cm\nh = 9.57 cm
9196
You want the VOLUME of the rectangular solid.\n(A "cube" is a solid with equal height, width, and depth - like a die.)\n\nThe volume = 15.5 * 10.5 * 9.375 = 1525.78125 cubic inches
453509
i'm not familiar with the unit barg, but just use the ideal gas equation PV=nRT solved for n so n=(PV)/(RT) with an apropriate value for the universal gas constant (R).  that will give you the number of moles of N2 which you can then determine the volume under standard conditions if you wish using the same equation.
800018
the way to find the mass of an object is to divide the volume by the density it would look like this M = D / V