after loads of calculations and stuff, i got the final answer: 62.5

is this right or not? thanks y'all

Guest Jun 8, 2021

#1**0 **

or is the answer 79.2 ?

cuz I assumed that rotating sprinkler rotates twice first so 60 degrees, not 30

which of these 2 answers is right? im confused

Guest Jun 8, 2021

#2**0 **

My answer is 79.238 m^{2}

(square area - area of the 30 degree sector)

(96 -16.762 = 79.238)

1) Area of a sector of circle = (area of a circle )* (Degree angle of the sector / 360)

..[30/360 = 1/12 is like the sector is one part of the whole 12 parts of the whole area of (pi r ^{2} )]...

(pi * 8^{2} ) * (1/12) = 16.7619m^{2}

2) The dry area of the garden : Garden area - 16.7619 = 79.238 m^{2}

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Jun 8, 2021