Final answer:
In order to find the areas of different shapes, we use different formulas. For a square, we multiply the side lengths. For a rectangle, we multiply the length and width. For a triangle, we multiply the base and height, and for a circle, we multiply π with radius squared.
Step-by-step explanation:
To find the area of each shape, we need to determine the appropriate formula for each.
For a square, the formula is A = side x side. Simply multiply the side lengths to find the area.
For a rectangle, the formula is A = length x width.
For a triangle, the formula is A = 1/2 x base x height.
For a circle, the formula is A = π x radius^2.
We can use either of the formulas mentioned above for each shape to find the area.