Area
AREA The term “area” refers to the space inside the boundary or perimeter of a closed shape. The area is measured in square units such as square feet, square centimetres, square inches, etc. The origin of the word is from ‘area’ in Latin, which translates to a vacant piece of level ground Deriving area formulas The “area” for any object could be explained as: The amount of material (such as paper, fabric, tiles) required to cover the surface in a 2-dimensional plane. Calculating the area The easiest method to interpret the area of geometric shapes is using “unit squares”. A unit square is a square with each of its side length measuring 1 unit. Using this as a basis, the area of a polygon is the number of unit squares within a shape. TRIANGLE: Area = 1⁄2× base × height Area = 1⁄2 × b × h EXAMPLE: Find the area of a triangle with a base of 10 inches and a height of 5 inches. Solution : A = (1/2) × b × h A = 1/2 × 10 × 5 A = 1/2 × 50 A = 25 in2 SQUARE: A...