Respuesta :

Answer:

a). 100

Step-by-step explanation:

Finding d₁ and d₂

  • d₁ = r₁ x 2 = 5 x 2 = 10
  • d₂ = r₂ x 2 = 10 x 2 = 20

Finding Area

  • A = 1/2 x d₁d₂
  • A = 1/2 x 10 x 20
  • A = 1/2 x 200
  • A = 100