Wipe the area with a microfiber towel and use the clay lubricant to remove any clay residue. Rub your fingers across the paint now; it should be as smooth as glass. If its not, repeat the process. Reshape the clay bar as needed to expose a clean surface. Keep the clay well-lubricated.
SA = $94\mbox{ cm}^2$. Example 2. Find the surface area for this rectangular prism. SA = 2 â¢ Top + 2 â¢ Front + 2 â¢ Left. SA = 2lw + 2lh + 2wh. SA = 2 â¢ 6 â¢ 3 + 2 â¢ 6 â¢ 3 + 2 â¢ 3 â¢ 3. SA = 36 + 36 + 18. SA = $90\mbox{ cm}^2$. Example 3. Find the surface area for this rectangular prism. SA = 2 â¢ Top + 2 â¢ Front + 2 â¢ Left. SA = 2lw + 2lh + 2wh. SA = 2 â¢ 5 â¢ 4 + 2 â¢ 5 â¢ 7 + 2 â¢ 4 â¢ 7. SA = 40 + 70 + 56. SA = $166\mbox{ cm}^2$. Geogebra applet: Use the length, width, and height sliders to create a rectangular prism of your choosing.
you can either find the area of a triangle or the volume of a triangular prism or pyramid triangles are 2d so you find the area to find the area of a triangle multiply length by height and divide by two l x h 2