If RS and MN are congruent and are having lengths be x+10 and 2x+4 then RS and MN both are 16 units.
Given that the length of RS=x+10, MN=2x+4 and RS and MN are congruent.
We are required to find the length of RS and MN.
Congruent lines are those lines which have equal lengths so that when they put on each other cover the lengths of line.
Since RS and MN are congruent then RS=MN.
x+10=2x+4
2x-x=10-4
x=6
RS=x+10
RS=6+10
RS=16 units
MN=2x+4
MN=2*6+4
MN=12+4
MN=16 units
Hence if RS and MN are congruent and are having lengths be x+10 and 2x+4 then RS and MN both are 16 units.
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