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- High school mathematics seeks big answers. Please write by hand? ! ! ! ? Handwriting! ! ! ! !
High school mathematics seeks big answers. Please write by hand? ! ! ! ? Handwriting! ! ! ! !
Let the central angle be radian and the radius be r. According to the meaning of the question, C=r*a+2r, r=c/(a+2), and substitute S= 1/2*a*r*r,
S= 1/2*c square *a/(a+2) square = 1/2*c square * 1/(a+4/a+4), using the inequality theorem,1/2 (a+)
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