A) \[\text{8 cm}\]
B) \[\text{6 cm}\]
C) \[\text{4 cm}\]
D) \[5\,cm\]
Correct Answer: C
Solution :
[c] Since, \[\Delta ABC\tilde{\ }\Delta PQR\] |
\[\therefore \,\,\,\,\,\,\,\,\,\frac{AC}{PR}=\frac{\text{Perimeter of }\Delta \text{ABC}}{\text{Perimeter of }\Delta \text{PQR}}\] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\frac{AC}{8}=\frac{20}{40}\,\,\,\,\,\,\,\,\,\Rightarrow AC=\frac{20\times 8}{40}=4cm\] |
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