A) 35
B) 70
C) 55
D) 65
Correct Answer: B
Solution :
\[\Delta AQC\] is a right angled triangle \[{{(AQ)}^{2}}+{{(QC)}^{2}}={{(AC)}^{2}}\] \[{{(QC)}^{2}}={{(AC)}^{2}}-{{(AQ)}^{2}}\] \[{{(QC)}^{2}}={{(37)}^{2}}-{{(12)}^{2}}\] \[1369-144=1225\] \[{{(QC)}^{2}}={{(35)}^{2}}\Rightarrow QC=35\] \[BC=BQ+QC=35+35=70\] \[[given\,BQ=QC]\]You need to login to perform this action.
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