Answer:
PQ = 1
PR = RQ
PR = RQ = 2.3
Explanation:
PR = RQ
The marks on sides PR and RQ means that the two sides are congruent and thus, they're equal.
Therefore, we can find x by setting the expression representing side PR (3x - 0.4) equal to the expression representing side RQ (x + 1.4):
3x - 0.4 = x + 1.4
3x = x + 1.8
2x = 1.8
x = 0.9
PQ = 1:
We can see that PQ = 1 by plugging in 0.9 for x in the expression representing side PQ:
PQ = 0.9 + 0.1
PQ = 1
PR = RQ = 2.3
We can see that both PR and RQ = 2.3 by plugging in 0.9 for x in the two expressions representing PR and RQ:
PR = 3(0.9) - 0.4
PR = 2.7 - 0.4
PR = 2.4
RQ = 0.9 + 1.4
RQ =2.3