Area and Perimeter

The area of a triangle is calculated using the formula: $$\frac{1}{2} \times base \times height$$ .

The perimeter of a rectangle is calculated by adding the lengths of all the sides: $$2 \times (length + width)$$ .

The area of a rectangle is calculated using the formula: $$length \times width$$ .

The unit of area is typically square units, such as cm², m², etc.

The area of a square is calculated using the formula: $$side \times side$$ or $$side^2$$ .

The perimeter of a square is calculated using the formula: $$4 \times side$$ .

The area is $$\frac{1}{2} \times 10 \times 5 = 25 cm^2$$ .

Area measures the space inside a shape, while perimeter measures the distance around a shape.

The area of a parallelogram is calculated using the formula: $$base \times height$$ .

The area of a trapezoid is calculated using the formula: $$\frac{1}{2} \times (base_1 + base_2) \times height$$ .