The methods to be carried out based on the principles of waste reduction in a grocery shop while purchasing the groceries.

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Q13: The line CD, C(xc, 6), D(6,yd), the point D is on the right of point C, the value of horizontal effect H(3,0) is on the right of point C, the vertical effect V(0, -2) right of H. the distance between projection of the points H, V is 5cm, Find: 1- The value of xc and yd. 2- The distance between projections of the points C, D. 3- The true length (T.L.) of CD. 4- The angles a and ẞ. 5- A point F in the middle of line CD, find F (xf, yf).

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Chapter 1, Problem 1.7P

To determine

The methods to be carried out based on the principles of waste reduction in a grocery shop while purchasing the groceries.

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Q13: The line CD, C(xc, 6), D(6,yd), the point D is on the right of point C, the value of horizontal effect H(3,0) is on the right of point C, the vertical effect V(0, -2) right of H. the distance between projection of the points H, V is 5cm, Find: 1- The value of xc and yd. 2- The distance between projections of the points C, D. 3- The true length (T.L.) of CD. 4- The angles a and ẞ. 5- A point F in the middle of line CD, find F (xf, yf).

Q9: The straight line AB of true length (8) cm, having the following data: A (5, ya) & B (xb, yb), the point B is on the left of point A, the inclination of the line to the horizontal plane (H.P) is 30° (a) it Horizontal trace H (-3, 0), and point H is on the left of point A with distance (16) cm. Draw the Plan & Elevation of the line AB and determine the following: 1. The missed coordinates: ya, xb, yb. 2. The coordinates of the vertical trace (V). 3. The inclination of the line to the vertical plane (V.P) (B). 4. The distance between projections of the points A and B

Q12: The straight line AB, having the following data: the distance between projections of the points A and B is 8 cm, and A (2.5, 0) & B (0, 6), the point B is on the left of point A. Draw the Plan & Elevation of the line AB and determine the following: 1. The true length T.L of the line AB. 2. The coordinate of Vertical trace V and Horizontal trace H. 3. The inclination of the line to the V.P and H.P. 4. A point E in the middle of the line AB, find E (xe,ye).