Divide the shape to two different shapes We get a trapezium/trapezoid And a triangle
Formula of the area of a trapezium: [tex] \frac{1}{2} [/tex] × height × (base₁ + base₂) [tex] \frac{1}{2} [/tex] × 5 × (14 + 18) *(height is 5, because 17 - 12 = 5) 2.5 × 32 80 mm²
Formula of the area of a triangle: [tex] \frac{1}{2} [/tex] × base × height [tex] \frac{1}{2} [/tex] × 18 × 12 48 mm²
Total Area: Area of trapezium + Area of triangle 80 + 48 128 mm²
