mamounghassan24 mamounghassan24
  • 11-03-2022
  • Mathematics
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How to do this question

How to do this question class=

Respuesta :

zsm2800 zsm2800
  • 11-03-2022

Answer:

b = 5

Step-by-step explanation:

Area of the triangle = b * 12/2 = 6b

Area of the rectangle = 9 * 12 = 108

Total area = 6b + 108  = 138

6b = 138 - 108 = 30

so b = 30/6 = 5

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