In the given figure, ABCD congruent to PQRS. if AB=3cm and perimeter of PQRS is 20cm, find RS.
Answers
Answer:
given: ABCD ~= PQRS
AB = 3cm
Perimeter of PQRS = 20cm
to find : value of RS
Step-by-step explanation:
Given that,
ABCD~= PQRS
so, AB = PQ (By CPCT)..............[ I ]
AB = 3cm. (given)................[ II ]
From [ I ] & [ II ]
PQ = 3cm
perimeter of parallelogram = 2( l + b )
20. = 2 ( 3 + b )
=> 20/2. = ( 3 + b )
=> 10. = 3 + b
=> b. = 10 - 3
=> b. = 7
breadth. = 7cm.
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