Answer:
<h2>The perimeter of the cross section is 30 centimeters.</h2>
Step-by-step explanation:
In this problem we have the intersection of a rectangular prism an a plane.
The dimensions of the rectangular plane are

Assuming the plane is cutting the prism horizontally, the cross section would have dimensions

Because only the height would be cut.
So, the perimeter of the rectangle cross-section is

Therefore, the perimeter of the cross section is 30 centimeters.
Change 212,514 into 215,000.
Change 396,705 into 400,000.
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Estimate:
215,000 + 400,000 = 615,000
Therefore:
212,514 + 396,705 ≈ 615,000
Show me the picture of the octagon. But remember that if the diameter is shown than always do half of the diameter to get the radius. Hope this helps
Answer:
1+1=a a=solution
Step-by-step explanation:
Answer: 2. I used the plug-in method because this is an easy question.
Step-by-step explanation:
1st Step: 2*(2)+3=7
2nd Step: 4+3=7
3rd Step: 7=7=True
Hope this helps!