The compound ratio of ab :c2, bc : a2 and ca : b2 is 1:1.

Answer : True

Explanation : The given ratios are

ab :c2

bc : a2

ca : b2

Compound Ratio of the given ratios = ( ab × bc × ca ) : ( c2 × a2 × b2 )

= a2 b2 c2 : a2 b2 c2

= 1 : 1

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