SURFACE AREA Math 7. The Surface Area of a given solid figure (3-Dimensional shape) is found by adding the areas of each surface of the figure together.

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Presentation transcript:

SURFACE AREA Math 7

The Surface Area of a given solid figure (3-Dimensional shape) is found by adding the areas of each surface of the figure together. There are formulas that can help us with this process. Since we are talking AREA, our units are square units

Rectangular Prism h w l Formula: Total Surface Area = 2wl + 2lh + 2wh Plug the numbers in and show work!

Find the Surface Area: 7m 3m 12m -Label each dimension first -Get the formula -Show work!

Cube s Formula: Total Surface Area = 6s 2

Find the Surface Area: 8cm -The only dimension to label is s -Get the formula -Show work!

Cylinder r h Formula: Total Surface Area = 2∏rh + 2∏r 2 Plug the numbers in and show work! Do not multiply by pi until the very end!

Find the Surface Area: 6in 9in -Label the dimensions -Get the formula

Find the Surface Area: 14in 10in -Label the dimensions -Get the formula

Triangular Prism refer to formula sheet for picture and formula Total Surface Area = wh + lw + lp + ls Just plug and chug!