Question

what is the perimeter of parallelogram lmno? 18 cm 22 cm 40 cm 80 cm

Explanation:

Step1: Recall the property of parallelogram

In a parallelogram, opposite sides are equal. So \(LM = ON\) and \(LO=MN\). Given \(LM = 22\mathrm{cm}\) and \(MN=18\mathrm{cm}\).

Step2: Use the perimeter formula

The perimeter formula of a parallelogram is \(P = 2(a + b)\), where \(a\) and \(b\) are the lengths of adjacent sides. Here \(a = 22\mathrm{cm}\) and \(b = 18\mathrm{cm}\). Then \(P=2(22 + 18)\).
Calculate \(22+18=40\), and \(2\times40 = 80\).

Answer:

\(80\mathrm{cm}\)