Perimeter of DPQRS - 20L
Length and breadth of a rectangle are 35 cm and
12 cm respectively. Find length of its diagonal.
(2 marks)
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Answer:
in ∆ QRS <R - 90°
QR - 12 cm. RS - 35cm
QS = RQ + SR
QS = 12 + 35
= 144 + 1225
therefore QS or diagonal is 37 cm
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