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Exterior angles
If you know the radius, double that to get diameter. If you have neither radius or diameter, then measure around the outside.
That is called the area.
It is the surface area of the solid.
If the shape is circle then circumference. If any other form (non-symmetrical) then you can measure the area with integration from Calculus.
Perimeter.
That's called the figure's area.That's called the figure's area.That's called the figure's area.That's called the figure's area.
The measure of the amount of space a solid figure is Volume
Exterior angles
The measure of the amount of space a solid figure is Volume
It is the perimeter.
Its volume.
Add all the sides of the irregular figure to the obtain the perieter. In the this particular case the permeter will be 2+3+4+9 =18 cms.
area
The surface.The surface.The surface.The surface.
If you know the radius, double that to get diameter. If you have neither radius or diameter, then measure around the outside.
That is called the area.