A point O is taken inside a rhombus ABCD such that distance from vertices B and D are equal. Show that AOC is straight line

A point O is taken inside a rhombus ABCD such that distance from vertices B and D are equal. Show that AOC is straight line Prov 19. A point O is taken inside a rhombus such that its distances from the vertices B D are equal. Show that AOC is a straight line 4r•1Qter91 ABCD, AD = BC