7. In the adjoining figure, if PQ = 5 cm, Bq
= 8 cm and CR=3 cm, then
what is the perimeter of PQR?
(C.B.S.E. 2017)
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Answer:
The perimeter of the given figure is 28 cm.
Step-by-step explanation:
Given : In the figure if PQ=5 cm,BQ=8cm and CR=3cm.
Solution :
As we have given, PQ=5 cm,BQ=8cm and CR=3cm
According to figure,
BQ=BP=8 cm
CQ=CR=AR=PA=3 cm
Perimeter of the triangle is sum of all sides.
Perimeter = BQ+QC+CR+RA+PA+BP
Perimeter = 8+3+3+3+3+8
Perimeter = 28 cm.
Therefore, The perimeter of the given figure is 28 cm.
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