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lana [24]
3 years ago
5

7th grade math , help me !

Mathematics
2 answers:
zlopas [31]3 years ago
8 0

B. 31.4 (pi) units

C. 31.4 units

A. 10 (pi)

Explanation:

Well since the equation to find circumference is C = 2(pi)r

And 10(pi) is exactly 2(pi)r, it’s not the answer.

And if we use 3.14 as an estimate for (pi), then 31.4 is also true for the circumference, because 10•3.14=31.4.

Also 10(pi) is more acurate then 31.4 because (pi) isnt exactly 3.14 its more like 3.1415926535...

Hope this Helps!

USPshnik [31]3 years ago
5 0
The answer is 31.4 I remember doing this
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Step-by-step explanation:

The total surface area simply consists of three rectangles and two triangles. To find the total surface of the figure, find the sum of each of the shapes that make up the outside of the figure:

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Thus, the total surface area of the figure is 48+72+96+120 = 336 ft^2.

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