Question

area of circle? with example

Answer 1

Example: What is the area of a circle with radius of 3 m ? Area= π r2. = π × 32. = 3.14159... × (3 × 3) = 28.27 m2 (to 2 decimal places)

Answer 2

Area of circle is
$\pi \times radius {}^{2}$
E g. Suppose a circle have radius of 7 cm then it's area will be 22/7×7×7
i.e. 154cm²