Question

The diamter of a circluar park
is 140 m. A path of 7m is construsted outside

Answer 1

diameter of circular park=140m
diameter of circular park +path=140+7+7=154m
radius of circular park=140m/2=70m
radius of circular park+path=154m/2=77m
Area of path =area of circular park +path-Area of path=pia×R^2-(pia×r^2)
=pia(R^2-r^2)
=22/7[(77)^2-(70)^2]m^2
=22/7×(5929-4900)
=(22/7×1029)m^2
=(22×147)m^2=3234m^2
Area of circular park=22/7×70×70=22×10×70=15400m^2

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Answer 2

Answer:

Step-by-step explanation:

diameter of circular park=140m

diameter of circular park +path=140+7+7=154m

radius of circular park=140m/2=70m

radius of circular park+path=154m/2=77m

Area of path =area of circular park +path-Area of path=pia×R^2-(pia×r^2)

=pia(R^2-r^2)

=22/7[(77)^2-(70)^2]m^2

=22/7×(5929-4900)

=(22/7×1029)m^2

=(22×147)m^2=3234m^2

Area of circular park=22/7×70×70=22×10×70=15400m^2