1.

12 cm7.6 cmPQRS is a parallelogram. PM is theheight from P to SR and PN is theheight from P to QR. IFSR = 12 cmand PM= 7.6 cm.Š Find the area of the paral-lelogram PQRS 902 Find PN, if QR=8 cm.

Answer»

PQRS is a parallelogram,

we know,area = b* h

= SR * PM

here SR = 12cm ,

PM = 7.6 cm

so, area of PQRS = 12cm * 7.6 cm

= 91.2 cm²

2). area = SR * PM = QR * PN

so, 91.2 cm² = 8cm * PN

91.2/8 = PN

PN = 11.4 cm

hence, PN = 11.4 cm



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