Respuesta :

25pi

pi x 10^2 is 100pi

Divide by four = 25pi

Answer:

78.53981634²

Step-by-step explanation:

(π×r²)÷4=area of shape

r (radius) = 10

π × 10² = 314.1592653²

314.1592653² ÷ 4 = 78.539816332