Answers

2016-01-21T18:01:07+08:00
Cube: 6a² rectangular prism: 2ab + 2bc + 2ac sphere: 4 pi r²
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2016-01-23T12:42:42+08:00
Surface Areas Cylinder=Abase = πr2 Alateral surface = 2πrh Atotal = 2Abase + Alateral surface = 2πr2 + 2πrh Sphere=A = 4πr2 Cone=Alateral surface = πrs Abase = πr2 Atotal = Alateral surface + Abase Atotal = πrs + πr2 Square-based pyramid=Atriangle = 12 bs Abase = b2 Atotal = 4Atriangle + Abase Atotal = 2bs + b2 Rectangular Prism=A = 2(wh + lw + lh) Triangular Prism=A b a s e = 12 b l Arectangles = ah + bh + ch Atotal = Arectangles + 2Abase Atotal = ah + bh + ch + bl
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