18:32
If the ratio of the lengths of corresponding parts in two similar solids is 51, then the ratio of their surface areas is the square of the ratio of their lengths. Therefore, the ratio of their surface areas is ( 51^2 = 2601 ).
16:1
False. The ratio of the surface areas of two similar solids is equal to the square of the ratio of their corresponding edge lengths, not the square root. If the ratio of the edge lengths is ( k ), then the ratio of the surface areas is ( k^2 ).
9 36
4:25
If the ratio of the lengths of corresponding parts in two similar solids is 51, then the ratio of their surface areas is the square of the ratio of their lengths. Therefore, the ratio of their surface areas is ( 51^2 = 2601 ).
7:10
16:1
False. The ratio of the surface areas of two similar solids is equal to the square of the ratio of their corresponding edge lengths, not the square root. If the ratio of the edge lengths is ( k ), then the ratio of the surface areas is ( k^2 ).
16:25
7:10
9 36
4:25
4:1
16:1
5:11
4:12 (Apex)