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Mariana [72]
2 years ago
9

Calculate the area of a circle with radius of 2 cm

Mathematics
2 answers:
Volgvan2 years ago
7 0
Area= π × r²
<span>
π  = 3.14</span>
3.14 x 2²
<span>3.14 x 4 
</span>
Area ≈ 12.56
Mariulka [41]2 years ago
6 0
A = pi × r²

3.14 x 2²

3.14 x 4 

A = 12.56636 ≈ 12.56
 
hopefully this helps u and if u know the formula to solve it, it is super easy

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Answer:

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Step-by-step explanation:

Given the information, create the following augmented matrix:

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\begin{gathered} 5x+4y=69 \\ x=9 \end{gathered}

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\begin{bmatrix}{5} & {4} \\ {\placeholder{⬚}} & {1}\end{bmatrix}\begin{bmatrix}{69} & {} \\ {9} & {}\end{bmatrix}

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\begin{gathered} x=9 \\ Substitute\text{ on the first equation} \\ 5(9)+4y=69 \\ 4y=69-45 \\ y=\frac{24}{4} \\ y=6 \end{gathered}

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1 year ago
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deff fn [24]

The answer is gonna be 15

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Step-by-step explanation:\

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