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after loads of calculations and stuff, i got the final answer: 62.5 
is this right or not? thanks y'all

 Jun 8, 2021
 #1
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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
 

 Jun 8, 2021
 #2
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My answer is 79.238 m2

(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 * 82  ) * (1/12)  =  16.7619m2

2) The dry area of the garden :  Garden area  - 16.7619  =   79.238 m2

Bginner  Jun 8, 2021
 #3
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Pink area = 79.24483918 m2

Guest Jun 8, 2021

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