Respuesta :

syifajafaari

Answer:

= 12.6 cm

Step-by-step explanation:

= 3.142 x 4

=12.6 cm

i dont know its correct or not

Answer:

50.3 cm²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( where r is the radius )

Here r = 4, thus

A = π × 4² = 16π = 16 × 3.142 ≈ 50.3 cm² ( to 1 dec. place )

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