We calculate the area of a rectangle with the equation
A = LW*1/2
A = The area of a rectangle
L = the height of the triangle
W = the base of the triangle
If the equation is one unknown to solve them quickly .
A = 128sq.ft
L = ?
W = 2L
substitute values into the formula
A = L * W *1/2
128sq.ft = Lft. * (2Lft) *1/2
128 = L²
L = √128 = 8√2
W = 2L = 2*8√2 = 16√2
