The area of a triangle is always calculated using the formula 1/2 × base × height, regardless of whether it is a right, scalene, isosceles, or equilateral triangle. Perimeter and area have practical applications, such as determining the cost of materials for building a fence or figuring out which shape encloses the most space. Understanding these concepts helps solve real-life problems in construction, design, and budgeting. Triangles part 5