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work out the area of this circle
Take pie to be 3.142 and give your answer to one decimal place
radius is 4cm

Respuesta :

jack8145

Answer:

50.24 or 50.272

Step-by-step explanation:

Square radius and then times by 3.14 or 3.142

4^2*3.14 = 50.24

4^2*3.142 = 50.272

adioabiola

The area of the circle is 50.3 cm², if pie is taken to be 3.142 and the radius is 4cm

Area of a circle = πr²

where,

π = 3.142

π = 3.142radius, r = 4 cm

Area of a circle = πr²

= 3.142 × (4cm)²

= 3.142 × 16cm²

= 50.272 cm²

To the one decimal place = 50.3 cm²

Therefore, the area of the circle is 50.3 cm²

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