Surface area of a cube and rectangular prism

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Presentation transcript:

Surface area of a cube and rectangular prism

How to find the surface area of a cube SA = Ph + 2B = (12•4) (12) + 2 (12)² = 48 • 12 + 2 (144) = 576 + 288 12 cm = 864 cm² P = the perimeter of the base h = the height of the cube B= the area of the base

How to find the surface area of a rectangular prism SA = Ph + 2B = (14+6+14+6) •10 + 2 (14• 6) 10m = (40) •10 + 2 (84) = 400 + 168 6m = 568m² 14m P= the perimeter of the base h= the height of the prism B= the area of the base

How to find the lateral surface area of a rectangular prism SA = Ph = (12 + 30 + 12 + 30) • 22 22yd = (84) • 22 = 1848 yd² 30yd 12 yd P= the perimeter of the base h= the height of the prism

How to find the surface area of a cube SA = Ph + 2B = ( • ) ( ) + ( )² = • + ( ) = + 12 cm = P = the __________ of the base h = the _________ of the cube B= the _______ of the _________

How to find the surface area of a rectangular prism SA = Ph + 2B = ( ) • + ( ) 10m ( ) = ( ) • + = + 6m = 14m P= the ____________ of the base h= the _________ of the prism B= the ____ of the _______

How to find the lateral surface area of a rectangular prism SA = Ph = ( ) • 22yd = ( ) • = 30yd 12 yd P= the ___________of the base h= the ______ of the prism

How to find the surface area of a cube SA = 6s² = 6 • (12)² = 6 • 144 = 864 cm² 12 cm s = the length of the side of the cube

How to find the surface area of a cube 5 ft 25 ft² 25 ft² 25 ft² 25 ft² 6 • 25 150 ft² 25 ft² 25 ft²

How to find the surface area of a rectangular prism SA = Ph + 2B = (14+6+14+6)•10 + 2(14• 6) 10m = (40)•10 + 2(84) = 400+ 168 6m = 568m² 14m P= the perimeter of the base h= the height of the prism B= the area of the base

How to find the surface area of a rectangular prism 60mm² 5mm 40mm² 96mm² 8mm 60mm² 40mm² 96mm² 12mm 60 + 40 + 96 + 60 + 96 + 40 = 392mm²

How to find the surface area of a rectangular prism SA = Ph + 2B = (8 + 4 + 8 + 4)•18 + 2(8• 4) 18m = (24)•18 + 2(32) = 432+ 64 = 496m² 4m 8m P= the perimeter of the base h= the height of the prism B= the area of the base

How to find the surface area of a rectangular prism SA = Ph + 2B = (8 + 4 + 8 + 4)•18 + 2(8• 4) 18m = (24)•18 + 2(32) = 432+ 64 = 496m² 4m 8m P= the perimeter of the base h= the height of the prism B= the area of the base