Answer : The mathematical expression is false.
Step-by-step explanation :
As we are given 4 triangles in which ΔROB & ΔPTA and ΔDEF & ΔYXW are appears congruent.
First we have to show that ΔROB and ΔPTA appear congruent.
Side RO appears equal to Side PT
Side OB appears equal to Side TA
Side RB appears equal to Side PA
∴ ΔROB ≅ ΔPTA (by SSS)
Now we have to show that ΔDEF and ΔYXW appear congruent.
Side DE appears equal to Side YX
Side EF appears equal to Side XW
Side DF appears equal to Side YW
∴ ΔDEF ≅ ΔYXW (by SSS)
According to given expression, ΔROB and ΔDEF have different shapes and sizes.
So, ΔROB not appear congruent to ΔDEF
Therefore, the mathematical expression is false.