A) \[155{}^\circ \]
B) \[150{}^\circ \]
C) \[135{}^\circ \]
D) \[95{}^\circ \]
Correct Answer: C
Solution :
Here, \[\angle QPL+\angle PLR=180{}^\circ \] |
\[\angle PLR=180{}^\circ -\angle QPL=180{}^\circ -115{}^\circ =65{}^\circ \] |
\[\angle RLP=\angle LRT+\angle RTL\] |
\[\angle LRT=\angle RLP-\angle RTL=65{}^\circ -20{}^\circ =45{}^\circ \] |
\[\angle SRT+\angle LRT=180{}^\circ \] |
\[\angle SRT=180{}^\circ -\angle LRT\] |
\[\angle SRT=180{}^\circ -45{}^\circ =135{}^\circ \] |
\[\angle SRT=135{}^\circ \] |
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