# 10.2.2 Transformations II, PT3 Focus Practice

 
Question 6:
Diagram below shows a ‘Wayang Kulit’ performed by Tok Dalang. The height of the screen use is 1.5 m. The shadow on the screen is ⅔ the height of the screen.
What is the height, in cm, of the puppet used by Tok Dalang?

Solution:
 

 
 
 
Question 7:
Diagram below shows the shadow of a pillar form on the wall from the light of a spotlight.
(a) State the scale factor of the enlargement.
(b) Find the height of the pillar.

Solution:
(a)

(b)

 
 
 
Question 8:
In diagram below, a torch light is used to form a shadow of a candle on the screen.

The height of the candle is 15 cm.
If the height of the shadow of the candle is ¾ of the height of the screen, find the height of the screen.

Solution: