Question

Find the area of a circle with a diameter of 4. How do you find they area of a circle?

Answer 1

The number pie

Explanation:

Answer 2

Area of a circle

Find the area of a circle with a diameter of 4. How do you find they area of a circle?

To find the area of a circle use the formula
`\large\tt A=\pi r^2` or
`\large\tt A=\pi * r * r`

Where π = 3.14 correct to 2 decimal places, r = radius, and d = diameter. The radius is half of the diameter.

• 
  `\tt A=\pi r^2`
• 
  `\tt A=3.14* 2^2`
• 
  `\tt A =3.14* 4`
• 
  `\tt A={12.56units^2}`

Therefore, the area of a circle is 12.56 sq. units

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