Algebraic expression through finding
area and perimeter of Geometric shapes.
Objective G705: The student will solve
multi-step geometry problems that
involve integrating concepts, planning,
and/or visualization.
Reminders:
• Area of a quadrilateral is base times height (same
thing as length times width.
• Area of a triangle is ½ base times height.
• Perimeter is the sum of all sides.
Ex. 1: Susan plans to construct a shed for her
garden. It will have a square-shaped floor. Each
side is represented by the expression (9x + 3) feet.
Determine the expression that represents the area
of the storage building?
Ex 2: Janet’s bedroom is represented the
picture below. What would the perimeter of
her bedroom be if she increased the length
and width by 5?
5x – 3
X+1
11. Write an expression represents the area of the
triangle below?
4x
7x – 2
The dimensions of a room are: (8x + 1) by (x 4) when measured in feet.
a. Write an expression that represents the
area of the room?
b. Write an expression that represents the
perimeter of the room?
Complete CW4 Worksheet