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Fun with Geometry and Measurement. Multimedia Project. Rectangular Prism. A prism with rectangles as bases. Surface Area= 2lw + 2wh + 2lh. Volume= length · width · height. height. width. length. Triangular Prism. A prism with triangle bases.

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**Fun with Geometry and Measurement**Multimedia Project**Rectangular Prism**A prism with rectangles as bases. Surface Area= 2lw + 2wh + 2lh Volume= length · width · height height width length**Triangular Prism**A prism with triangle bases. Surface Area= 2(1/2 base · height)* + (bottom)side +(front)side + (back)side Volume= 1/2 · base · height · length *Multiply by two because you have two triangles**Pyramid**A figure in space with three or more triangular faces and a base in the shape of a polygon. Surface Area= Length • Width + 4*(1/2 bh) Volume=1/3 • L• W • H *multiply by 4 because you have 4 triangular faces. height Width Base/Length**Now Let's Try**Some Practice Problems !!!**Find the Area...**Push for the formulas 1. 8 cm Push here for the answer A 12 cm**Find the Area...**Push for the formulas Answer: A=lw =12•8 =96 cm 1. 8 cm 12 cm**Find the Area...**Push for the formulas 15 cm 2. Push here for answer A HEIGHT 8 cm 12 cm 10 cm**Find the Area...**Push for the formulas 15 cm 2. Answer: a=1/2(a+b)h =1/2(12+15)•10 =1/2(27) •10 =1/2(270) = 135 cm2 HEIGHT 8 cm 12 cm 10 cm**Find the Surface Area...**Push for the formulas A Click here for the answer 3. 5 ft 14ft 10 ft 6 ft**Find the Surface Area...**Push for the formulas 3. 5 ft Answer: SA=2(1/2 bh)+side+side+side =2(1/2•6 •14)+10•6+10•5+10•5 =2( 42)+60+50+50 =84+60+50+50 =244 ft2 14ft 10 ft 6 ft**Find the Volume...**Push for formulas 4. A Push for Answers 4 in 3.5 in 5in**Find the Volume...**4. Answer: V=lwh =5•3.5•4 =70 in3 4 in 3.5 in 5in

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