Correct Answer - Option 4 : 36 cm
Given:
Area of parallelogram = 648 cm2
The base of parallelogram = 2 × height of the parallelogram
Formula used:
Area of parallelogram = b × h
Where,
b = Base of the parallelogram
h = Height of the parallelogram
Calculation:
b = 2h ...1)
Area of parallelogram = b × h
⇒ 648 = 2h × h
⇒ 324 = h2
⇒ h = 18 cm
From equation (1)
⇒ b = 2h
⇒ b = 36 cm
∴ The base of the parallelogram is 36 cm.