2 years ago

Help ASAP please ! Explain too

Mathematics

1 answer:

lilavasa [31]2 years ago

5 0

Answer:

r=4

Step-by-step explanation:

you basically have to create a proportion. .5/12 = x/96. then u cross multiply

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vivado [14]

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Fiesta28 [93]

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2 years ago

A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the noz

damaskus [11]

Take a look at the attachment below. It may help!

With this sector we can create a proportion to find the area watered by the sprinkler. 85 degrees over a total 360 degrees would be simplified to the following -

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Thus, we can calculate the area of the circle with a range of 5 meters radius, and divide by about 4.235 to receive the area watered by the sprinkler, or the area of the sector -

$Area( Full Circle ) = \pi r^2,\\Area( Full Circle ) = \pi * ( 5 )^2,\\Area( Full Circle ) = 25\pi,\\\\Area( Full Circle ) = ( About ) 78.5$