Samantha's Surface Area and Volume Post

Surface Area

Rectangular Prism

To get the surface area of a rectangular prism, you just go:

2 (T+F+S)

2 (__+__+__)

2 (__)

TSA = 2 (T+F+S)

TSA = 2 (50+60+30)

TSA = 2 (140)

TSA = 280m²

Cylinder

To get the surface area of a cylinder you just go add the rectangle area number with the circle area number and again, the circle area number.

TSA = 301.44 + 50.24 + 50.24

TSA = 401.92mm²

^{Triangular Prism}

^{To get the surface area of a triangular prism you just go:}

TSA = 135 + 36 + 36

TSA = 207cm<sup>2

Volume

Triangular Prism
To get the volume of a triangular prism the formula is:</sup>

Rectangular Prism
To get the volume of a rectangular prism, the formula is l x w x h. It doesn't actually matter if you put the length then width then height, you can change the order.

Cylinder

To get the volume of a cylinder, the formula π x r x r x h or you can just use π x r ² x h.