The angle of intersection of a contour and a ridge line, is (A) 30° (B) 45° (C) 60° (D) 90°

The angle of intersection of a contour and a ridge line, is 

(A) 30° 

(B) 45° 

(C) 60° 

(D) 90° 

by

1 Answer

Answer :

(D) 90° 

by

Related questions

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