3 years ago

Find the length of an arc formed by a 90 degree angle on a circle with a radius of 6 the hcc

Mathematics

1 answer:

zvonat [6]3 years ago

8 0

The length of that arc is (90/360)·2·π·6 = (1/4)·12·π = 3·π ≈ 9.42 units;

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Given

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$w = 15in$ --- width

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Required

The absolute change in the height of the water

First, calculate the base area (b):

$b = l * w$

$b =24in * 15in$

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The height of the water that was removed is:

<em /> $H = \frac{V_1}{b}$ <em> i.e. the volume of the water removed divided by the base area</em>

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The absolute change in height is:

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$\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}$

The lost percentage is 25%

The percentage remaining is 75%

Thanks
ThanksHope it helps

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