tiffanyrenee3355
19.01.2021 •
Mathematics
Here is a semi circle of radius x the perimeter of the shape is the shape of 25.71cm calculate the value of the radius x
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Ответ:
5 cm
Step-by-step explanation:
Perimeter of a semicircle is :
P = πr + 2r
P = r(π + 2)
25.71 = r(3.14 + 2)
25.71 = r(5.14)
Divide both sides by 5.14
25.71 / 5.14 = r(5.14) / 5.14
5.0019455 = r
Hence, radius of semicircle = 5 cm
Ответ:
I hope this helps :)