Respuesta :

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Step-by-step explanation:

The angle of the minor sector will be ,

> 360 - 270= 90° .

Area of sector :-

> Area = ∅ / 360 × πr²

> A = 90/360 × 3.14 × (4cm)²

> A = 1/4 × 3.14 × 16 cm²

> A = 12.56 cm²

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