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3 years ago

6

Suppose the diameter of a circle is 4. what is its area?

2 answers:

Umnica [9.8K]3 years ago

7 0

A=12.57 hope this helped you!

3241004551 [841]3 years ago

5 0

The area is 12.57
Formula: PieR^2

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$\huge\bf \pink {\underline{Solution :-}}$

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$\bf \purple{ \underline{ Important \: Formulas \: for \: Factorization :-}}$

$• \: {a}^{2} + 2ab + {b}^{2} = {(a + b)}^{2}$

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$• \: {a}^{2} - 2 ab + {b}^{2} = {(a - b)}^{2}$

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$• \: (a - b)( {a}^{2} + ab + {b}^{2} ) = {a}^{3} - {b}^{3}$

$• \: {( \frac{a + b}{2} )}^{2} - ( {\frac{a - b}{2} } )^{2} = ab$

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