Calculate to the nearest 1/10th meter the radius of a 7th, 12th, and 30th hectare circular plot. [work

For a 7 hectare plot, the radius is 149.3 m.

For a 12 hectare plot, the radius is 195.5 m.

For a 30 hectare plot, the radius is 309.1 m.

Step-by-step explanation:

For a circular plot of area A, the radius is

[tex]r=\sqrt{A/\pi}[\tex]

One hectare is equal to 10,000 m2.

For a 7 hectare plot, the radius is

[tex]r=\sqrt{7*10,000/3.14}\\r=\sqrt{22,293}=149.3[\tex]

For a 12 hectare plot, the radius is

[tex]r=\sqrt{12*10,000/3.14}\\r=\sqrt{38,216}=195.5[\tex]

For a 30 hectare plot, the radius is

[tex]r=\sqrt{30*10,000/3.14}\\r=\sqrt{95,541}=309.1[\tex]

the solution is h=10 because you add 9 to each side of the equation.

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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