Question

the area of a circular field is 138600 m². find  a) its radius.                        b) diameter.                        c) circumference.  ​

Answer 1

Step-by-step explanation:

area =πr2

138600= 22/7 ×r×r

138600×7 = r×r

22

6300×7=r2

44100=r2

taking square root

radius= 210 m

diameter=2×r= 2×210=420 m

circumference = 2πr= 2×22/7×210= 2×22×30=1320 m