Answer:
13.85 m²
Step-by-step explanation:
area of a circle = r² x 3.14
given: diameter of 4.2m
radius of 4.2
= 2.1
radius ²
= 2.1 x 2.1
= 4.41
follow the formula: r² x 3.14
= 4.41 x 3.14
= 13.85
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