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Find the circumference and area of the circle. Express answers in terms of and then round to the nearest tenth. Find the circumference in terms of . C = _

Find The Circumference And Area Of The Circle Express Answers In Terms Of And Then Round To The Nearest Tenth Find The Circumference In Terms Of C class=

Sagot :

Solution:

Given the circle with its radius, r;

[tex]r=11cm[/tex]

Thus, the circumference, C, of a circle is;

[tex]C=2\pi r[/tex]

Then;

[tex]\begin{gathered} C=2\pi(11)cm \\ \\ C=22\pi cm \end{gathered}[/tex]

ANSWER:

[tex]C=22.0\pi cm[/tex]

Also, the area, A, of the circle is;

[tex]A=\pi r^2[/tex]

Then;

[tex]\begin{gathered} A=\pi(11)^2 \\ \\ A=121\pi cm^2 \end{gathered}[/tex]

ANSWER:

[tex]A=121.0\pi cm^2[/tex]

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