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Step-by-step explanation:
STEP 1 : DRAW THE FIGURE as shown above sorry not that proper bt labellings r all ryt
Now tale tri. ABR
80/BR=TAN 45 DEGREE
BR=80CM
RQ= 200-80=120cm
IN TRI. PQR
PQ/120=TAN 40 DEGREE
PQ = 0.8391×120
AMSWER:100.692cm
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