Question

if the true lengthis 20mm corresponding isometric length is
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Answer 1

Answer:

Explanation: The ratio of isometric length to true length is 0.815 so here it is given isometric length of 20 cm. 0.815 = 20 cm / true length => true length = 20 cm /0.815 = 24.53 cm.

Answer 2

Answer:

24.5 is tha correct answer of this question