The area of the number 7 by cutting out a rectangle and parallelogram is 57 cm².
What is the area of number 7?
Area of number 7 = Area of rectangle + Area of parallelogram
Area of rectangle = Length × Width
= 7 cm × 3 cm
= 21 cm²
Area of parallelogram = Base × height
= 9 cm × 4 cm
= 36 cm²
Hence,
Area of number 7 = Area of rectangle + Area of parallelogram
= 21 cm² + 36 cm²
= 57 cm²