اى محيط اكبر المربع ام الدائرة عندك عدة اجابات قل لى رأيك

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Origin at circle center

x^2= r^2-y^2

x=(r+y)/2

y=2x-r

x^2= r^2-(4x^2-4xr+r^2)

x^2=-4x^2+4xr

5x=4r

x=4r/5

Square perimeter=8x=(32/5)r

Circle perimeter=(2pi)r

32/5=6.4>2pi=6.28

Square perimeter is larger

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r*2=a^2/4+(a-r)^2

r=5/8a

Pi*10/8a=3.925a<4a

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circumcenter?

a,b,c = triangle sides

r = abc/4 (triangle area)

=10a³/4a²

Circumference= 3.14 x 5 x 0,5 a

Perimeter = 4 x 2 a

tag math

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