Respuesta :

mhanifa

Answer:

  • 40√3 cm²

Step-by-step explanation:

Step 1

Find the height:

  • h² = 8² - (12 - 8)²
  • h² = 64 - 16 = 48
  • h = √48 = 4√3

Step 2

Find the area:

  • A = 1/2(a + b)h
  • A = 1/2(12 + 8)(4√3) = 40√3 cm²

typicalavanii
the answer is 72cm…i think but i’m sure it’s right
Ver imagen typicalavanii