Answer:
a) TPR
b) NM
c) x=6
Explanation:
a) since the angle K is the middle letter on in the first triangle, the second triangle's middle letter will be P since they correspond
b) TR is congruent to NM because if you flipped TR upside down, it would match directly with NM
c) 4x-3=21
4x=24
x=6
this is because TR and NM are congruent, so 4x-3 is equal to 21