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EggWithWheels
26.01.2020 •
Mathematics
The pattern for a scarf is shown at right.what is the area of the scarf? use 3.14 for pi
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Ответ:
anyway, it seems to be a rectangle-2 semicircles
well, the 2 semicircles seem to add to 1 circle so
area of circle=pi times radius^2
diameter/2=radius
area of rectangle=length times width
rectnalge-circle=scarf
rectanlge=28 by 15=28*15=420
circle, diameter is 15 so radius is 15/2=7.5
area=pi7.5^2=pi56.25=3.14*56.25=176.625
so
rectangle-circle=420-176.625=243.375 square inches
the area of the scarf is 243.375 square inches
Ответ:
Paleolithic
Step-by-step explanation:
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