Solve Problems Using Algebraic Expressions

Interactive macro-enabled MS-Excel spreadsheet. Contents: Find unknown sides of a Δ or quadrilateral given sides & perimeter. Find unknown sides of a Δ or quadrilateral given sides & area. Find a square’s side length l given a Δ of equal perimeter P. Find a rectangle’s l & w given ratio l : w & a Δ of equal perimeter P. Write expressions for the length of one side of a regular polygon. Write expressions for relatives whose ages are algebraically related. Write expressions for the mean weight of b blue birds & r red birds. Write expressions for a six-sided rectilinear L shape’s perimeter. Write expressions in brackets & № as a product of its prime factors. Write expressions for a square’s side l given a frame of equal area. Write expressions for the product of 2 or 3 consecutive numbers. Write expressions for a triangle’s or trapezium’s area in two forms. Write expressions for a triangle’s sides & area in the form k√x & kx².