"परिमिती" च्या विविध आवृत्यांमधील फरक
ओळ २४: | ओळ २४: | ||
This approximation is within about 5% of the true value, so long as `a' is not more than 3 times longer than `'`b' (in other words, the ellipse is not too "squashed"): |
This approximation is within about 5% of the true value, so long as `a' is not more than 3 times longer than `'`b' (in other words, the ellipse is not too "squashed"): |
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ellipse perimeter (approx) = 2pi into square root of [(a squared+b squared)/2] |
ellipse perimeter (approx) = 2pi into square root of [(a squared+b squared)/2]. |
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उदा० a = १०; b = ६. तर परिमिती = ५१.८१२४७३३७.(approximate). |
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Approximation 2 : |
Approximation 2 : |
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ओळ ३२: | ओळ ३५: | ||
ellipse perimeter (approx) = pi into [ 3(a+b) - square root of ((3a+b)(a+3b))] |
ellipse perimeter (approx) = pi into [ 3(a+b) - square root of ((3a+b)(a+3b))] |
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उदा० a = १०; b = ६. तर परिमिती = ५१.०५३९७२७९.(approximate). |
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Approximation 3 : |
Approximation 3 : |
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रामानुजमचे सूत्र : First we calculate "h": |
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h = (a-b)<sup>2</sup>/(a+b)<sup>2</sup> |
h = (a-b)<sup>2</sup>/(a+b)<sup>2</sup> |
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Then, ellipse perimeter (approx) = pi(a+b)(1 + 3h/(10+square root of (4-3h)) |
Then, ellipse perimeter (approx) = pi(a+b)(1 + 3h/(10+square root of (4-3h)) |
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उदा० a = १०; b = ६. तर परिमिती = ५१.०५३९९७७३ (Most accurate) |
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[[वर्ग:भूमिती]] |
[[वर्ग:भूमिती]] |
१८:०२, ३ एप्रिल २०१९ ची आवृत्ती
त्रिकोणाची परिमिती = तिन्ही बाजूंच्या लांबींची बेरीज
सूत्रे
आकार | सूत्र | सूत्रामधील चल संख्या |
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वर्तुळ | = त्रिज्या. | |
त्रिकोण | , आणि = त्रिकोणाच्या प्रत्येक बाजूची अनुक्रमे लांबी. | |
चौरस | = चौरसाची बाजू | |
आयत | = लांबी आणि = रुंदी |
टीप : वर्तुळाच्या परिमितीला परीघ म्हणतात.
लंब वर्तुळाची परिमिती
a = मोठी त्रिज्या; b = छोटी त्रिज्या.
Approximation 1 :
This approximation is within about 5% of the true value, so long as `a' is not more than 3 times longer than `'`b' (in other words, the ellipse is not too "squashed"):
ellipse perimeter (approx) = 2pi into square root of [(a squared+b squared)/2].
उदा० a = १०; b = ६. तर परिमिती = ५१.८१२४७३३७.(approximate).
Approximation 2 :
The famous Indian mathematician Ramanujan came up with this better approximation:
ellipse perimeter (approx) = pi into [ 3(a+b) - square root of ((3a+b)(a+3b))]
उदा० a = १०; b = ६. तर परिमिती = ५१.०५३९७२७९.(approximate).
Approximation 3 :
रामानुजमचे सूत्र : First we calculate "h":
h = (a-b)2/(a+b)2
Then, ellipse perimeter (approx) = pi(a+b)(1 + 3h/(10+square root of (4-3h))
उदा० a = १०; b = ६. तर परिमिती = ५१.०५३९९७७३ (Most accurate)