radius of a circular region 63cm. Find the least length rope which is sufficient encircle the circular region
Answers
Answered by
12
解：
找到最短的繩索長度
足以包圍該地區，我們必須找到
超出圓形區域的圓周。
給出：半徑63厘米
圓周長= 2r
= 2'22 / 7 63
周長396厘米
環繞該區域的繩索長度為396厘米
396
Solution:
To find the least length of rope which is
sufficient to encircle the region, we have to find
out the circumference of the circular region.
Given:radius 63 cm
Circumference of circle = 2r
= 2'22/7 63
Circumference 396 cm
Length of rope to encircle the region is 396 cm
Answered by
3
Answer:
radius= 63cm
circumference= 2πr
=2 x 22\7 x 63
=2 x 22 x 9
=396cm
the length of the rope will be 396cm
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