Question

what's the definition of 1st angle and 3rd angle

Answer 1

HI mate GM here is your answer...,

First Angle Projection is used in Europe and most of the world. ... InFirst Angle Projection we place our object in the First Quadrant (see above figure). This means that the Vertical Plane is behind the object and the Horizontal Plane is underneath the object.

InThird Angle Projection the Object is placed in the Third Quadrant. Thismeans that the Vertical Plane is in front of the object and the Horizontal Plane is above the object.
I hope it will help you and mark me as a brain list answer plz.

Answer 2

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