3 years ago

The area of a circle is 3.142cm square.find the radius and diameter of the circle

2 answers:

5 0

Area of circle = pi x radius^2 = 3.142
This means the radius must be 1 cm. pi x 1^2 = 3.142 4sf
The diameter is therefore = 2 cm

3 0

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

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