## Perimeter And Area

Published in: Mathematics
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• ### Debarun S

• Kolkata
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• Qualification: B.Tech
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This is about what perimeter and area is and some common formulas for some 2D figures. Important for class vii students of CBSE board

• 1
The perimeterofra closed plane figure is the length of its boundary. 8cm 7cm IOcm 8cm 15cm _ 15 +8+7 = 48cm
• 2
Rectangle L- 8cm p=l+b+l+b o Square L=6cm p = 6+6+6+6 p=l+l+l+l = 41 or 4s b Triangles c a
• 3
Area is the space within the boundary ora figure.
• 4
—Areaofpa ra I I elog ra m height! base Area of parallelogram=basexheight
• 5
Area of a triangle h b Area h b h b =lhxbasexheig h t
• 6
Area of trapezium D K c Area of trapezium ABCD area fAABC + area fAACD = (1/2 x BC x AH) + (1/2 x AD x Cl
• 7
ΤΗΑΝΚ γου

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