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how is there not enough info? This is all the info i am being given.

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Q: What is the surface area of a triangular prism is the height is 4 inches width 6 inches and length of 12 inches?

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214 square in.

base*height*length*.5

A triangular prism is a three-sided prism with three faces joining corresponding sides. The formula for its surface area is SA = wh + lw + lh + ls, where l=length, h=height, w=width and s=side.

When you say surface of a prism this means the total amount of space on the outside of the prism. You have specified it to be a triangular prism, but taking the surface area of all prisms is the same process for all prisms. When finding the surface area of a prism you always use this equation... S.A. = (2 x Area of Prism Base) + (Height x Perimeter of Prism Base) In a triangular prism the base would be a triangle. Therefore to find the area you have to do 0.5 x base of the triangle x height of the triangle. For the perimeter of the triangle just add the length of all the sides together. The height indicated in your S.A. = ... formula... is how tall the prism actually stands. So since this prism is a triangular prism take the general surface area equation and put the correct triangular measurements into the general equation and you have this... S.A. = [2 x 0.5 x (height) x (base)] + [Height x perimeter] Here is the formula in word form. The surface area of a triangular prism is equal to two multiplied by one half multiplied by the height of the traingular height multiplied by the triangular base compute this number and then add it to the product of the height of the prism times the perimeter of the triangular base.

volume=1/2*length*width*height.

Related questions

It is 36 cubic inches.

Assume that a = apothem length of the triangular prism, b = base length of the triangular prism, and h = height of the triangular prism. The formulas to find the surface area is SA = ab + 3bh.

The formula of for the surface area of a cuboid is 2(width*height + length*height + length*width) height = 96 width = 176 length = 158 2(176*96 + 158*96 + 158*176) = 119,744 inches2

Surface area: (2*0.5*3*4)+(3*9)+(4*9)+(5*9) = 120 square inches

Triangular Prism: (Breadth x Height) + (3 x Length x Breadth) By Austin from a Christian school in Belrose, NSW

The answer depends on what sort of triangle: right angled, equilateral, isosceles or scalene.

The area does not provide sufficient information to determine the length, width and height.

1332 inches squared

If the base length is 6 inches then the base area will be 9*sqrt(3) = 15.6 cm2, which rounds to 16, not 15. So some of the information provided is patently incorrect and therefore the question has no sensible answer.

214 square in.

It depends on the shape of the prism - whether its ends are triangular, rectangular or are polygons with more sides.

base*height*length*.5