Construct an isoeceles triangle whose base is 8 cm and altitude 4 cm and then another triangle whose sides `1(1)/(2)` times the corresponding sides of the isoeceles triangle.

Construct a triangle with sides 5 cm, 6 cm and 7 cm and then another triangle whose sides are (7)/(5) of the corresponding sides of the first triangle.

Construct a triangle with sides 5 cm, 5.5 cm, and 6.5 cm. Construct another triangle whose sides are (3)/(5) times the corresponding sides of the given triangle.

Draw an isosceles Delta ABC where BC = 5.5 cm and altitude AL= 3 cm. Then, construct another triangle whose sides are (3)/(4) times the corresponding sides of Delta ABC .

Draw a right triangle in which the sides (other than hypotenuse) are of lengths 4 cm and 3 cm. Then construct another triangle whose sides are (5)/(2) times the corresponding sides of the given triangle.

Construct a triangle of sides 4 cm, 5 cm and 6 cm and then a triangle similar to it whose sides are (2)/(3) of the corresponding sides of the first triangle.

Construct a right-triangle where the sides (other than the hypotenuse) are of lengths 5 cm and 7 cm. Then, construct another triangle whose sides are (4)/(5) times the corresponding sides of the given triangle.

Construct a triangle PQR where PQ=6 cm QR=7 cm , and PR = 8 cm. Then, construct another triangle whose sides are (4)/(5) th the corresponding sides of PQR .

In each of the following, give the justification of the construction too. Draw a right-triangle in which the sides (other than hypotenuse) are of lengths 4 cm and 3 cm. Then, construct another triangle whose sides are (5)/(3) times the corresponding sides of the given triangle.