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coldgirl [10]
2 years ago
8

Alright, so I have a question that says this:

Mathematics
1 answer:
yKpoI14uk [10]2 years ago
5 0
Octogon
sides=4
draw lines from the outside angles to the center so they form 8 equal triangle sections
find the area of each triangle and multiply by 8

area of triangle=1/2 base times height
base=4
the height is the distance from the center of one side of the octogon, to the center=5
so area=4 times 1/2 times 5=4 times 5=10

8 triangles so 8 times 10=80
the answer is 80cm^2
the diagram included below shows area for a pentagon

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Answer:

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This means, for instance, to see if it can be simplified at all.

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The x just gets copied along.

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So, all-in-all, the left hand side of your inequality can be written as: 5x+2

Now, let's work on the right hand side of your inequality, the 32

The right hand side of your inequality can be written as: 32

So with these (any) simplifications, the inequality we'll set out to solve is:

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Now, the inequality reads:

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To isolate the x, we have to divide both sides of the inequality by the other "stuff" (variables or coefficients)

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The last step is to divide both sides of the inequality by 5 like this:

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