Answer:
OP = 21
Explanation:
Since the figures are similar then the ratios of corresponding sides are in proportion , that is
= ( substitute values )
= ( cross- multiply )
8 OP = 168 ( divide both sides by 8 )
8 : 33.6 = 5 : x
x = 5 × 33.6 / 8 = 21
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= 
( substitute values )
= 
( cross- multiply )