Sunday, 3 November 2019

Perimeter and Area


Perimeter and Area

Perimeter of a square= 4 X side
Perimeter of a rectangle= 2 length X 2 breadth


Area
(Always denote the answer of Area with sq cm, sq m, sq km or cm2, m2, km2)

Area of a square= side X side

Area of a rectangle = length X breadth

Area of a right angle triangle= 1/2 X product of the side forming the right angle

         OR

Area of a right angle triangle= 1/2 X base X height

Total surface area of Cuboid= 2( l X b + b X h + l X h )
= 2 (lb +bh + lh)

Total surface area of a cube= 6 X (side)2

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