Respuesta :

mhanifa

Answer:

  • s = 1/3(a + b + c + 16)

Step-by-step explanation:

Given

  • If (s -a) = 5cm, (s -b) = 10cm, (s -c) = 1cm
  • s = ?

Solution

Add up the 3 equations and solve for s:

  • s - a + s - b + s - c = 5 + 10 + 1
  • 3s = 16 + a + b + c
  • s = 1/3(a + b + c + 16)
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