Graduation Numeracy Reference Pages GEOMETRY l w a c h b r d r h • s b h b l h w a c b A C B Geometric Figure Perimeter Area Surface Area Volume Geometric Solid Rectangle Triangle Circle Cylinder Square-based Pyramid Rectangular Prism General Right Prism General Right Pyramid P = 2l + 2w or P = 2(l + w) C = πd or C = 2πr P = a + b + c l = length w = width b = base h = height s = slant height r = radius d = diameter P = perimeter C = circumference A = area SA = surface area V = volume A = πr 2 A = lw A = bh 2 A top = πr 2 1 2 A triangle = bs A base = πr 2 A base = b 2 SA = 2bs + b 2 A side = 2πrh SA = 2πr 2 + 2πrh V = (area of base) × h V = (area of base) × h V = (area of base) × h SA = the sum of the areas of all the faces SA = the sum of the areas of all the faces V = × (area of base) × h 1 3 V = × (area of base) × h 1 3 SA = wh + wh + lw + lw + lh + lh or SA = 2(wh + lw + lh) Pythagorean Theorem c 2 = a 2 + b 2 KEY LEGEND