Question

7. The perimeter of parallelogram PQRS is 54 cm. If PQ = 15 cm, find QR​

Answer 1

Answer:

Perimeter = 54cm

PQ = 15cm

2(l+b)

2(15+QR) =54

30+2QR = 54

2QR=54-30

2QR = 24

QR = 12

Answer 2

Answer:

2 (a + b) = 54

2 ( 25 + b) = 54

50 + 2b = 54

2b = 54 - 50 = 4

PQ (b) = 4 / 2 = 2 cm