skate board ramp (triangular prism)

Question

Oliver is using plywood to build the skateboard ramp shown. Three sides of the ramp are rectangles.

How many square feet of plywood does Oliver need

to build the ramp?

how do I put image? but the numbers included are 5ft, 6ft, 4ft, and 3ft. It is on google you can copy and paste the sentence and go on images and you'll see the image containing the numbers and the shape. This is due in a few hours, please hurry.

Answer 1

So Sorry S.,

Look carefull at the image. You will be able to discern the 3 rectangles, and 2 right triangles (which you could combine to make a 4th rectangle). Just add up all the areas.

However, how much plywood you would actually need to buy would depend on the size of the plywood source. 4 x 8' sheets are common. You will discern immediately that you need internal bracing in order to accomplish that 6 x 5' side, and designing that in will require a little planning. Otherwise Oliver's ramp will promptly collapse, and he will be sorry, not just You!

-- Cheers, --Mr. d.