mensuration formulas of perimeter and area of different shapes 2d and 3d...
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2D
Square
A= s^2
P= 4s
Rectangle
P=2(l+b)
A= l×b
Circle
Peimeter/circumference= 2×pi× radius
area= pi×r^2
Trapezium
Area= 1/2(sum of parallel sides)×height
Perimeter= sum of sides
Rhombus
P= 4s
A= 1/2×diagonal 1× siagonal 2
Parallelogram
P=2(l+b)
A=base × height
3D
Cube
area,
Lsa= 4×s^2
Tsa= 6l^2
Volume= s^3
Cuboid,
Lsa= 2(l+b)h
Tsa= 2(lb+bh+lh)
Volume= l×b×h
Cylinder
Csa= 2×pi×r×h
Tsa= 2×pi×r(r+h)
Square
A= s^2
P= 4s
Rectangle
P=2(l+b)
A= l×b
Circle
Peimeter/circumference= 2×pi× radius
area= pi×r^2
Trapezium
Area= 1/2(sum of parallel sides)×height
Perimeter= sum of sides
Rhombus
P= 4s
A= 1/2×diagonal 1× siagonal 2
Parallelogram
P=2(l+b)
A=base × height
3D
Cube
area,
Lsa= 4×s^2
Tsa= 6l^2
Volume= s^3
Cuboid,
Lsa= 2(l+b)h
Tsa= 2(lb+bh+lh)
Volume= l×b×h
Cylinder
Csa= 2×pi×r×h
Tsa= 2×pi×r(r+h)
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