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Answer:
Plane figures = A plane figure is a geometric figure that has no thickness. It lies entirely in one plane.
Solid figures = The objects that are three-dimensional with length, breadth, and height defined are known as solid shapes.
Difference between 2D and 3D are that 2D and 3D refer to the actual dimensions in a computer workspace. 2D is "flat", using the horizontal and vertical (X and Y) dimensions, the image has only two dimensions and if turned to the side becomes a line. 3D adds the depth (Z) dimension.
Mensuration is the branch of mathematics that studies the measurement of geometric figures and their parameters like length, volume, shape, surface area, lateral surface area, etc.
Square
Area : a²
Perimeter : 4a
Rectangle
Area : lb
Perimeter : 2(l+b)
Circle
Area : πr²
Perimeter : 2πr
Scalene triangle
Area : bh/2
Perimeter : a+b+c
Isoceles triangle
Area : bh/2
Perimeter : 2a+b
Triangle
Area : bh/2
Perimeter : a+b+c
Right angle triangle
Area : bh/2
Perimeter : a+b+√a²+b²
Rhombus
Area : pq/2
Perimeter : 4a
Trapezium
Area : (a+b/2)h
Perimeter : a+b+c+d
Parallelogram
Area : bh
Perimeter : 2(a+b)
Sphere
Volume :4/3πr³
CSA : 4πr²
TSA : 4πr²
Cube
Volume : a³
CSA : 4a²
TSA : 6a²
Cuboid
Volume : lbh
CSA : 2h(l+b)
TSA : 2(lb+bh+hl)
Cylinder
Volume : πr²h
CSA : 2πrh
TSA : 2πr(r+h)
Cone
Volume : πr²h/3
CSA : πrl
TSA : πr(r+l)
Hemisphere
Volume : 2/3πr³
CSA :2πr²
TSA : 3πr²
