Answer: The length of side RT and side NQ is 51 units.
Explanation:
Given : Δ RST ≅ Δ NPT
RT=7x-5 , NQ= 5x+11
To find: RT =? and NQ=?
Solution:
Since, given triangles are congruent .And Congruent triangles have equal sides.
≅

So,
RT= NQ = 7x-5 = 5x+11
Solving for x we get ,x = 8
RT =7x-5 = 7 × (8) - 5 = 51 units
NQ = 5x+11 = 5 × (8) + 11 = 51 units