Respuesta :

mhanifa

Answer:

  • 30 cm²

Step-by-step explanation:

The shaded area is the difference of the total area and the white triangle.

The white triangle has base of 9 cm and height of 4 cm.

Its area is:

  • A = 1/2*9*4 = 18 cm²

Area of rectangle:

  • A = 12*4 = 48 cm²

The shaded area:

  • 48 - 18 = 30 cm²

Area of rectangle:

  • Length ×Breadth
  • 12(4)
  • 48cm²

Area of triangle:-

  • 1/2BH
  • 1/2(9)(4)
  • 2(9)
  • 18cm²

Area of shaded region

  • 48-18
  • 30cm²

Otras preguntas