Question

the top view of a 75 mm long line measures 55mm the line is in the vp its one end being 25 mm above the hp draw its projection

Answer 1

Given: TL=75; SL = 55(in Top View).

SL in TV TL in FV(Angle in HP).
Steps: 1) On x-y, mark TV 55 (ab = 55).
2) Mark a’ 25 above a.
3) Project from b and with rad = 75, cut
arc from a’ to get TL 75(FV=75; TV=55);

Answer 2

Thus, complete projection on the figure.

Step-by-step explanation:

Given;

Top View is $75mm$ long which is $55mm$ line in Vertical Plane and its one end being $25mm$ above the Horizontal Plane.

Following steps;

• Draw a line $xy$ and mark Top view which is  $55mm$ line in Vertical Plane like as $ab$
• Mark a horizontal point $a^{'}$ above point $a$
• Project from b and with rad$=75mm$, cut  arc from a’ to get Top view  $75mm$ at point $b^{'}$
• Join $a^{'}$ and $b^{'}$

So complete projection on the figure.