[Solved] A line of length 30 inches is parallel to profile plane and makes an angle of 60 degrees with vertical plane. The length of line in top view is inches.

Civil Engineering
Engineering Graphics
A line of length 30 inches is parallel t...

Q.	A line of length 30 inches is parallel to profile plane and makes an angle of 60 degrees with vertical plane. The length of line in top view is inches.
A.	30
B.	15
C.	25.9
D.	51.9
Answer» C. 25.9
Explanation: given the line is parallel to profile plane and makes 60 degrees with vertical plane. there will be no need for distance from profile plane. the length of line from top view will be sin(60) x length of the line= sin(60) x 30 inches =25.9 inches.

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