Respuesta :

wolf1728

Answer:

There is a special formula to find a circle's area when you know its diameter:

Circle Area = ¼ • π • d²

Circle Area = ¼ • 3.14 • 18²

Circle Area = ¼ • 3.14 • 324

Circle Area = .785 • 324

Circle Area = 254.34 square yards

Step-by-step explanation:

madison3395

Answer:

A=254.47yd²

Step-by-step explanation:

The area of a circle with diameter 18yd using the value 3.14 for pi without rounding the answer is, 254.47yd².

Formulas: A=πr² and d=2r

A=1

4πd²=1

4·π·18²≈254.469yd²

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