alott1121
02.10.2019 •
Mathematics
The diameter of the larger circle is 12.5 cm. the diameter of the smaller circle is 3.5 cm.
what is the best approximation for the area of the shaded region?
use 3.14 to approximate pi.
28.26 cm²
113.04 cm²
132.27 cm²
254.34 cm²
hurry i need !
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Ответ:
The area of the smaller circle is π × 1.75², which is ≈ 9.62112750162.
The diameter of the larger circle is 12.5 cm, so the radius would be half that, which is 6.25cm. The area of the larger circle would be π × 6.25², which is ≈ 122.718463031.
So now that we know the area of the larger circle and the smaller circle, we can find the area of the shaded region by subtracting the area of the smaller circle from the area of the larger circle, which is basically just 122.718463031 - 9.62112750162, which is = 113.097336. The closest answer here is 113.04, hence the answer is 113.04cm².
Ответ:
113.04cm². hope i helped
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Ответ:
Generals Grant and Sherman provided very lenient terms of surrender to the Confederate forces of Lee and Johnston in order to avoid a protracted guerilla war waged by disgruntled Confederate soldiers.