Understanding Quadrilaterals
Activity-3 :
Subtopic: Area of parellelogram = B x H
DATE:
AIM /
Objective:
To derive the formula
to find the area of parallelogram
MATERIALS REQUIRED:
Pencil, scale, eraser
PREREQUISITE KNOWLEDGE:
Concept of
parallelogram
PROCEDURE:
• Draw a parellelogram ABCD and cut it
• Fold ABCD such that DE ⊥
AB
• Cut ΔAED and paste along DEBC to get DEXC
Ar (ABCD) = Ar (DEXC)
= EX ⋇
CX
= AB x DE
= Base x Height
LEARNING
ASSESSMENT:
Derive the formula to find the area of the parallelogram
SOLUTION:
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