HELP MEEE PLSSS <333 I'LL GIVE YOU BRAINLIEST Riggoletto’s Portraits specializes in making circular portraits of people. A la

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HELP MEEE PLSSS <333 I’LL GIVE YOU BRAINLIEST

Riggoletto’s Portraits specializes in making circular portraits of people. A large portrait is 78 in. in diameter. A medium portrait is 26 in. in diameter. Estimate the difference between the areas of the two sizes of portraits. Use 3.14 for pi Round your answer to the nearest whole number.

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Bơ 4 years 2021-09-02T03:57:06+00:00 1 Answers 31 views 0

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  1. thuthuy
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    2021-09-02T03:58:36+00:00
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    Answer:

    4245.28

    Step-by-step explanation:

    The formula for the are of a circle is A= πr²

    however we will substitute 3.14 for π

    d=2r, diameter is equal to twice the radius of a circle, dividing the radius by 2 will give you the radius, \frac{d}{2}=r

    \frac{78}{2}=39, r=39

    \frac{26}{2} =13, r=13

    A=(3.14)(39)^{2}, A=4775.94

    A=(3.14)(13)^{2}, A=530.66

    We can calculate the difference of the areas through subtraction

    4775.94-530.66=4245.28

    plz mark me brainliest. 🙂

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