Question

Help please with 9 and 10 please !

Answer 1

9) The scale factor is 3/2

10) The scale factor is 4/3 and the missing length is 9

Explanation:

9) The triangles are similar because 6/4 = 9/6 = 3/2

The scale factor is 6/4 = 3/2

10) If the rectangular gardens are similiar then the scale factor is 16/12 = 4/3

(The scale factor is always > 1)

=> 12 / x = 4/3 => 4x = 12·3 => x = 9

Answer 2

9. The scale factor is 1.5.

10. scale factor = 0.75

the missing side is 9m

Explanation:

9. 3/2 = 1.5

9/6 = 1.5

6/4 = 1.5

10. 12/16 = 0.75

12*0.75 = 9