In the direction perpendicular to the display which is rotated by 90 ◦ in that ◦. Theta. 30 in the same way as in Fig. 2 the position taken by a total of 6 points with Samurai Marketing Co., Ltd MK laser distance meter and to determine the distance and LAK when the angle of about , angle calculation of the present device using pita Athenagoras theorem stress mode
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