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Kobotan [32]
3 years ago
5

Help please!! asap! lots of points!!

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0

Answer:

A = 225 pi unit^2

Step-by-step explanation:

The circumference of a  circle is 30 pi

C = pi *d

30 pi = pi*d

Divide each side by pi

30 pi/pi = pi d/ pi

30 =d

The diameter is 30

We need to find the radius for area

d= 2r

30 = 2r

Divide by 2

30/2 = 2r/2

15 =r

The area of a circle is

A = pi r^2

A = pi (15)^2

A = pi 225

A = 225 pi unit^2

kherson [118]3 years ago
7 0

Answer:

The answer is A.

Step-by-step explanation:

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Sunny_sXe [5.5K]

Answer:

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Step-by-step explanation:

The perimeter is the sum of the all sides of the shape.

Triangle:

3√147+2√108+2√48+3√75+ 6√12

147=49•3, 108=36•3, 48=16•3, 75=25•3, 12=4•3 that means

√147=7√3, √108=6√3, √48=4√3, √75=5√3, √12=2√3

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8 0
3 years ago
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mina [271]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

f(x)=|x|

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