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If a point A lies on the line segment jo...

If a point A lies on the line segment joining the points `P(6,0) and Q(0, 8)` such that `AP : AQ= 2 : 3`, find the co-ordinates of point A.

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To find the coordinates of point A that divides the line segment joining points P(6, 0) and Q(0, 8) in the ratio AP:AQ = 2:3, we can use the section formula. ### Step-by-step Solution: 1. **Identify the Coordinates of Points P and Q:** - Point P has coordinates (6, 0). - Point Q has coordinates (0, 8). 2. **Determine the Ratio:** - The ratio AP:AQ is given as 2:3. This means that point A divides the line segment PQ in the ratio of 2 parts from P to 3 parts from Q. 3. **Use the Section Formula:** - The section formula states that if a point A divides the line segment joining points (x1, y1) and (x2, y2) in the ratio m:n, then the coordinates of point A (x, y) can be calculated as: \[ x = \frac{mx_2 + nx_1}{m+n} \] \[ y = \frac{my_2 + ny_1}{m+n} \] - Here, (x1, y1) = (6, 0) and (x2, y2) = (0, 8), with m = 2 and n = 3. 4. **Calculate the x-coordinate of A:** \[ x = \frac{2 \cdot 0 + 3 \cdot 6}{2 + 3} = \frac{0 + 18}{5} = \frac{18}{5} = 3.6 \] 5. **Calculate the y-coordinate of A:** \[ y = \frac{2 \cdot 8 + 3 \cdot 0}{2 + 3} = \frac{16 + 0}{5} = \frac{16}{5} = 3.2 \] 6. **Final Coordinates of Point A:** - Therefore, the coordinates of point A are \( \left(3.6, 3.2\right) \). ### Summary: The coordinates of point A that divides the line segment joining points P(6, 0) and Q(0, 8) in the ratio 2:3 are \( A(3.6, 3.2) \).
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NAGEEN PRAKASHAN-CO-ORDINATE GEOMETRY-Exercise 7b
  1. Find the co-ordinates of a point which divides the line joining the po...

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  2. Find the co-ordinates of a point which divides the line joining the po...

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  3. Find the co-ordinates of a point which divides the line joining the po...

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  4. Find the co-ordinates of a point which divides the line segment joinin...

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  5. Find the co-ordinates of a point which divides the line segment joinin...

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  6. If a point A lies on the line segment joining the points P(6,0) and Q(...

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  7. Find the ratio in which X-axis divides the line segment joining the po...

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  8. Find the ratio in which Y-axis divides the line segment joining the po...

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  9. Find the ratio in which Y-axis divides the line segment joining the po...

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  10. Find the co-ordinates of the mid-point of the line joining the followi...

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  11. The co-ordinates of the end points of a diameter of a circle are (3, -...

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  12. The co-ordinates of the vertices of a DeltaABC are A(1, 0) , B(3, 6) a...

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  13. The co-ordinates of three consecutive vertices of a parallelogram are ...

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  14. Find the co-ordinates of the points of trisection of the line segment ...

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  15. Find the co-ordinates of the points fo trisection of the line segment ...

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  16. Find the ratio in which the join of points (3, -1) and (8, 9) is divid...

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  17. The line segment joining the points (3, -4) and (1, 2) is trisected at...

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  18. Two circles C(0, r) and C'(0', r') touch externally at P(3, 1). If the...

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