Respuesta :

mhanifa

Answer:

#1

  • 10*3.7/2 = 18.5 m² (both the triangle and rectangle have same base and height)

#2

  • 3.14*6² - 2² = 109.04 m²

#3

  • 4.1*8.2/2 = 16.81 cm² (the square is half the rectangle)

#4

  • 18² - 3.14*9² = 69.66 dm²

#5

It's not clear what is shaded. Giving all options

1. Rectangle in the middle:

  • 4*3.4 = 13.6 m²

2. Two semicircles:

  • 3.14*2² = 12.56 m²

3. Total area:

  • 13.6 + 12.56 = 26.16 m²

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