The formula for the area of the circle is 𝑨 = π𝒓². To work out the area of a circle: Find the value of the radius. If the diameter is given, this must be halved. Substitute the value of ...
Remember the area of a circle = \(\pi r^2\) The sector area is: \(\frac{1}{6} \times \pi \times 4^2 = 8.4~\text{cm}^2\) The formula to calculate the sector area is: \(\text{Sector area} ...
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