It is known that: as shown in the figure, D and E are on a C and a B respectively, B D and c e intersect at O, and a C is equal to a B

It is known that: as shown in the figure, D and E are on a C and a B respectively, B D and c e intersect at O, and a C is equal to a B


Where is the picture



If a times a quarter equals B times three fifths, then a: B equals 5:12 () right or wrong?


Wrong, a: B = 12:5