26nober01 26nober01

19-03-2021
Mathematics

contestada

What is the area of a circle with a diameter of 21 centimeters?

use 3.14 for pi

Respuesta :

mariao73 mariao73

19-03-2021

Answer:

346.4 square centimeters (cm²)

Answer Link

s179893 s179893

19-03-2021

Answer:

346.185 cm²

Step-by-step explanation:

radius = diameter / 2

Area of a circle = πr²

radius = 21/2 = 10.5

Area = 3.14(10.5)²

Area = 346.185 cm²

Answer Link

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