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Please explain.

A right triangular prism has a height of 3 ft, a width of 4 ft, and a hypotenuse of 5 ft. The depth of the triangle is missing. If the surface area of the triangular prism is 192 square ft, find the depth of the triangular prism.

Respuesta :

positive the answer is 60 
The formula of the Volume is followed by the model: V = Bh
Where B is the area of the triangle, which is given - 192ft² and h is the height, between the two ends.

V = ? 
B = 192ft²
h = 3ft
Following the equation;
V = 192 * 3
∴ = 576ft³

I hope you followed through. Also on note, if you aren't given the S.A [surface area], you will be required to use the Area formula. A = 1/2×base×height.
Lets say we didnt know the area, your working should look like this ;
V = Bh
V =? 
B = 1/2bh
h = 3ft
Thus,
V = 1/2(b)(h)(3)
Substitute the figures into b and h....also, the brackets means multiply. 

Hope this helped you :)