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A line of length 25 cm is parallel to horizontal plane and makes an angle of 45 degrees with profile plane. The length of line in side view is ____ cm.

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A line of length 25 cm is parallel to horizontal plane and makes an angle of 45 degrees with profile plane. The length of line in side view is ____ cm.

(a) 25

(b) 12.5

(c) 88.3

(d) 17.67

I have been asked this question in an interview for internship.

The doubt is from Projection of Straight Lines Parallel to Plane in portion Projection of Lines of Engineering Drawing

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The correct answer is (d) 17.67

For explanation: Given the line is parallel to profile plane and makes 45 degrees with profile plane. There will be no need for distance from a profile plane. The length of line from top view will be sin (45) x length of the line= sin (45) x 25 cm = 17.67 cm

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