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JulijaS [17]
3 years ago
11

Us Find the circumference of this circle ysing 3 for a C ~ [?] 20 C=πα

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
7 0

Answer:

C≈60

Step-by-step explanation:

remember circumference formula

\displaystyle C =  2\pi r

given that,d=20 therefore r would be 20/2=10 thus substitute:

\displaystyle C =  2\pi .10

simplify mutilation:

\displaystyle C =  20\pi

substitute the given value of π:

\displaystyle C =  20.3

simplify multiplication:

\displaystyle C = 60

and we are done!

Kryger [21]3 years ago
5 0

Answer:

2*\pi *10=62.83185307

20/2 = 10

(Radius)Or the C = \pi*d

62.83185307 is the answer

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3 years ago
Use addition or substitution to find the value of y for this set of equations. 4x + 13y = 40 4x + 3y = -40
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4x + 13y = 40
4x + 3y = -40

multiply second equation by -1

4x + 13y = 40
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add equations together

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put y in either original equation

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3 years ago
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3 years ago
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vekshin1
Simple you get the area of the inner rectangle, then the area of the 2 semi circles then add them.
First, you need to notice that the diameter of each circle is same as the side of the rectangle (46m), also not that the 2 semi circles will make a complete one circle with radius (46/2)
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3 0
3 years ago
A pair of shoes that normally costs $75 is on sale for $55. What is the percent decrease in the price, to the
tia_tia [17]

Answer:

BI=27%

Step-by-step explanation:

x(the precentage of 55 from 75)

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6 0
2 years ago
Read 2 more answers
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