How to find capacity of triangular shaped tanks??

i need to know in litres the capacity of two triangular tanks,large one measures(in millimeters)1350 up the longest sides,830 across the shortest side,and is 300 deep.the other one measures600 up the longest sides 410 across the shortest side and is also 300 deep,its times like this that i wish i had payed attention at school!!

Answer:
Sounds like your tanks have bases in the shape of isoceles triangles - two of the three sides are the same length.

The fomula quoted by others (b*h/2) is for use when the 'height' of the triangle has been measued. In your case that would be the distance from the short side to the opposite apex.

A little geometry shows that if your 'base' is the shortest side and we call that 2b and call the other sides l - both equal length, and finally call the distance from base to apex 'd' then

l^2 = d^2 + b^2

d = sqrt (l^2 - b^2)

area = b * sqrt (l^2 - b^2)

volume = h b sqrt (l^2 - b^2)

first triangle has l = 1350, b = 415, h = 300
second one is l = 600, b = 205, h = 300


vol 1 = 159936472 mm^3 = 160 l
vol 2 = 34679402 mm^3 = 34.7 l
miltiply length and width (the legs of the tiangle) and divide that By 2, then multiply that by the depth
a triangle is a two dimensional object so has zero volume.
The volume is given by the area of the triangular base * depth of the tank.

Large tank: 300 * (1285 * 830) /2 cubic mm = 159982500
There are a million cubic millimetres in a litre
Volume of large tank is approx 160 litres.

Small tank 300 * (564 * 410) /2 = 34686000
About 34.7 litres

(The 1285 and the 564 refer to the distance from the middle of the short side to the opposite 'corner')

Hope that helps.

The answers post by the user, for information only, FunQA.com does not guarantee the right.



More Questions and Answers:
  • What does it mean when someone says they design floor loads to 40-10-00-05?
  • How do i Modify my 5mw Green Laser to 10mw 20mw 50mw or 100mw?
  • In 3 phase AC induction motor, what is slip?,Give its expression which relates speed & frequency?
  • MatH experts, teachers,wizards!=>....i need ur help immediately...!?
  • What stabilizes a house on stilts?
  • What is the use of Control Systems in Power Plant Automation?
  • What is the scope of mechanical engg. in india and outside ?
  • Building a Gazebo, octagon , what is the angle of cut for the frame?
  • I have my project study now. Where can I find a circuit of light automation?