9514 1404 393
Explanation:
The figure shows a regular pentagon with the radius and the length of one side given. The Pythagorean theorem to find the missing side of the right triangle whose given sides are the pentagon radius and half the side length. That missing side is the apothem of the pentagon. As with any regular polygon, the area of this pentagon will be half the product of the perimeter and the apothem. The perimeter of a pentagon is 5 times the side length. All dimensions are in feet, so the area will be in square feet.
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<em>Additional comment</em>
The working out was not requested, but here it is, anyway.
a = √(40.8² -(48/2)²) = √1088.64 ≈ 32.99 . . . feet
P = 5(48 ft) = 240 ft
A = (1/2)Pa = (1/2)(240 ft)(32.99 ft) = 3959.3 ft²
Note that the radius has been rounded down to the nearest tenth. If the full-accuracy value were used, the area would be found to be 3963.98 ft².
Answer:
1.6 million square km
Explanation:
The Great Pacific Garbage Patch is an excellent proof of how much the humans are damaging the environment, and how little they actually care about it. The biggest ocean on the planet, the Pacific Ocean, has a garbage patch that is estimated to be 1.6 million km in size. To put into a perspective, that's approximately twice the size of Texas. That data is from 2015 though, so the chances are that in the present the garbage patch is even bigger. The Great Pacific Garbage Patch comes to literary be a slow moving island of garbage. It is around 3.5 meters deep, and it contains around 7 million tons of garbage, the majority of which is plastic. This garbage patch actually has so much plastic that it outnumbers the plankton in the Pacific Ocean. The fish that lives around it, as well as the other marine life, are badly affected, and around 8% of them actually have plastic in them because of it.
Gases and solids injected into the stratosphere circled the globe for three weeks. Volcanic eruptions of this magnitude can impact global climate, reducing the amount of solar radiation reaching the Earth's surface, lowering temperatures in the troposphere, and changing atmospheric circulation patterns.
