136 Squares = (3n^2)+n 137 Squares = 138 Squares = 8n 139 Squares = 140 Squares = 6n+2 (4n^2)+4n Patterns 141 – 160 141 Squares 142 Cubes =(2n^2)+2 143 Squares and triangles = 144 Length of 145 Cylinders = 2n+3 hypotenuse of =(2n^2)+4n+2 3n-1 black triangle = (2n^2)+2n+1
136 Squares = (3n^2)+n 137 Squares = 138 Squares = 8n 139 Squares = (4n^2)+4n 140 Squares = 6n+2 Patterns 141 – 160 141 Squares =(2n^2)+4n+2 142 Cubes =(2n^2)+2 143 Squares and triangles = 3n-1 144 Length of hypotenuse of black triangle = (2n^2)+2n+1 145 Cylinders = 2n+3