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AysviL [449]
3 years ago
5

What's the answer .........????????????

Mathematics
1 answer:
aliya0001 [1]3 years ago
3 0
Area of a circle= pi*r^2

r^2= 10^2= 100
100*pi is the area of the whole circle. Since it is a semicircle, divide it in half.

100*pi/2= 50*pi

Final answer: 50*pi cm^2
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<h3>Answer:   50%</h3>

Work Shown:

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Find the point P on the line y=2x that is closest to the point (20,0) .what is the least distance between pans (20,0)?
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so, we know that line passes through the point 20,0, and has a slope of -1/2

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now, the point that's on 2x and is also on that perpendicular line, is the closest to 20,0 from 2x, thus, is where both graphs intersect, as you can see in the graph

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------------------------------------------------------------

not sure on the 2nd part, but sounds like, what's the distance from that point to 20,0, well, if that's the case, just use the distance equation

\bf \textit{distance between 2 points}\\ \quad \\&#10;\begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%  (a,b)&#10;&({{ \square }}\quad ,&{{ \square }})\quad &#10;%  (c,d)&#10;&({{ \square }}\quad ,&{{ \square }})&#10;\end{array}\qquad &#10;%  distance value&#10;d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}


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