Question

# Find the circumference and area of a circle of diameter $$56 \; m$$.

Solution

## Diameter of circle $$= 56 \; m$$Radius of circle $$= \cfrac{56}{2}$$                         $$= 28 \; m$$Therefore,Circumference of circle $$= 2 \pi r \\ = 2 \times \cfrac{22}{7} \times 28 \\ = 176 \; {m}^{2}$$Also,Area of circle $$= \pi {r}^{2} \\ = \cfrac{22}{7} \times {\left( 28 \right)}^{2} \\ = 2464 \; {m}^{2}$$Mathematics

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