Answers about Math and Arithmetic > 자유게시판

Archimedes proved that the area enclosed by a circle is equal to that of a triangle whose base has the length of the circle's circumference and whose height equ
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Math and ดูแลสุขภาพโดยโรงพยาบาลวิมุต Arithmetic



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What is the radius of the circle whose equation is 3x² plus 3y² equals 75?


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3x^2 + 3y^2 = 75 Divide both sides by '3' Hence x^2 + y^2 = 25 x^2 + y^2 = 5^2 In the Pythagorean Geometry The circle equation is x^32 + y^2 = r^2 Hence 5^2 = r
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Math and Arithmetic



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If I was 13 what year was I born in?


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If you celebrated your 13th birthday this year (2017) - you were born in 2004 !