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lapo4ka [179]
3 years ago
11

Find the area of a circle who is diameter is 27 inches(use 3.1416)

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0

Answer:

Given:

Diameter= 27 inches

radius= d/2

        =27/2

        =13.5

<h3>Area of Circle =  \pi r²</h3><h3>                         = \pi×(13.5)²</h3><h3>                         = 572.6 inches²</h3><h3 />
Nimfa-mama [501]3 years ago
4 0

Answer: The area is 572.5566

Step-by-step explanation:

27÷2=r=13.5

A=πr²

A=3.1416(π) · 13.5²(r)

A=572.5566

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ohaa [14]

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Step-by-step explanation:

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\begin{aligned} & (a - b)\, (a + b)\\ =\; & a^{2} + a\, b - a\, b - b^{2} \\ =\; & a^{2} - b^{2} \end{aligned}.

In other words, (a^{2} - b^{2}), the difference of two squares in the form a^{2} and b^{2}, could be factorized into (a - b)\, (a + b).

In this question, the expression (9\, w^{2} - 100) is the difference between two terms: 9\, w^{2} and 100.

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