if the length of diagonal of regular pentagon is b and side length is a,prove that a^2/b^2+b^2/a^2=3

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Arun · Answer

consider right triangle AOB angle OAB =54 degree sin54=b/2a b=2asin54 sub in eq. a2/(4a2sin254) + (4a2sin254)/a2 =3

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if the length of diagonal of regular pentagon is b and side length is a,prove that a^2/b^2+b^2/a^2=3

if the length of diagonal of regular pentagon is b and side length is a,prove that a^2/b^2+b^2/a^2=3

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if the length of diagonal of regular pentagon is b and side length is a,prove that a^2/b^2+b^2/a^2=3

if the length of diagonal of regular pentagon is b and side length is a,prove that a^2/b^2+b^2/a^2=3

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