Question

Please answer this question as fast as possible

Answer 1

no thx

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Answer 2

Answer:

29 units

Step-by-step explanation:

It is given PQ = PR

PQ = 5y-7

PR = 3y-1

QR = 4y +1

PQ = PR

5y -7 = 3y-1

5y -3y = - 1+7

2y =6

y =3

PQ = 5y -7 = 15 -7 =8

PR = 3y -1 = 9-1 =8

QR = 4y +1 = 12 +1 =13

Perimeter = PQ + PR + QR

=8+13+8

= 29 units