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allochka39001 [22]
4 years ago
6

The diameter of a circle is 15 find the are ? I need help please

Mathematics
2 answers:
miss Akunina [59]4 years ago
7 0

Answer:

176.715

Step-by-step explanation:

Area of circle: \pi r^{2}

To find the radius: diameter divided by 2

15/2=7.5

pi * 7.5 * 7.5 = 176.715

**I found my answer using the actual number for pi, if you're using 3.14 as pi then the answer is 176.625**

alex41 [277]4 years ago
4 0

Answer:

176.71

Step-by-step explanation:

yupthatstheanswerbye


https://www.google.com/search?q=how+to+find+the+area+of+a+circle&rlz=1CAACAV_enUS724US724&oq=how+to+find+the+area&aqs=chrome.2.69i57j0l5.7673j0j7&sourceid=chrome&ie=UTF-8

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Find the distance from point A(−14, 5) to the line −x+2y = 14.
Ad libitum [116K]

Answer:

The distance from point A to given line is: 2√5 or 4.472 units

Step-by-step explanation:

Given equation of line is:

-x+2y= 14

And the point is:

A = (x_1,y_1) = (-14,5)

The standard form of equation of line is:

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Converting the given equation into standard form

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The distance of a point (x1,y1) from a line is given by the formula:

d = \frac{|Ax_1+By_1+C}{\sqrt{A^2+B^2}}

In the given details,

A = -1, B = 2, C = -14

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Putting the values in the formula

d = \frac{|(-1)(-14)+(2)(5)-14|}{\sqrt{(-1)^2+(2)^2}}\\d = \frac{14+10-14}{\sqrt{1+4}}\\d = \frac{10}{\sqrt{5}}\\d = \frac{5*2}{\sqrt{5}}\\d = \frac{\sqrt{5}*\sqrt{5}*2}{\sqrt{5}}\\d = 2\sqrt{5}\\d = 4.472\ units

Hence,

The distance from point A to given line is: 2√5 or 4.472 units

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3 years ago
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4 0
3 years ago
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stira [4]

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