Answer :

Steps of Construction:

1.First, we draw a triangle PQR of given dimensions.

2.Draw a line segment PQ of length 5cm.

3.From P, make an angle of 120° and draw a ray from P.

4. Now taking P as centre and radius of 5cm(length of PQ), draw an arc on the ray. The point is Q.

5. Join QR.

6. Now we have to make a triangle which is � times of this triangle.

7. Draw a ray PZ making an acute angle with the line PR.Make 4 equal arcs starting from P then P_{1} and so on till P_{4}.

8. Join P_{4}C.

9. Draw a line from P_{3} parallel to P_{4}C cutting PR at R’.

10. Draw another line from R’ parallel to QR cutting PQ at Q’.

11.PQ’R’ is our required triangle.

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