Question

The diameter of a circular park is 30m find its surface area?

Answer 1

given 
         diameter is 30 m
          so radius is 15 m
area of circle is pie r^2
                         22/7*15*15
                          32.142 msq

Answer 2

Answer: Area of field = 707.14  $m^{2}$ .

Step-by-step explanation:

• This problem is related to the area of plane surfaces. We know that area of circle is $\pi r^{2}$.
• Given, diameter of the circular field is 30 m.
• We know radius is half of diameter so, radius of the field is =$\frac{30}{2}m$

                                                                                                           = 15 m

• Now the surface area of the field is = $\pi r^{2}$

                                                                   = $\frac{22}{7} (15)^{2}$

                                                                   = 707.14 $m^{2}$

• Hence, the required area of the circular field is 707.14  $m^{2}$ .

To learn more about area and perimeter of the plane figures visit the link: https://www.nios.ac.in/media/documents/SecMathcour/Eng/Chapter-20.pdf

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