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17. [Multiple Choice] The length and area of a rectangle are 15cm and 150cm? It's
perimeter is: (1 pt) sign
O A. 30cm
O B. 25cm
O C. 50cm
O D. 10cm
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Answered by
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Let the breadth=x
the length =x+15
given perimeter=150
we know
Perimeter of rectangle=2(l+b)
150 = 2( x+ x+15)
75=2x+15
60=2x
30=x
therefore breadth =30 cm
length =30+15=45 cm
check
150=2(45+30)
150=2(75)
150=150
LHS=RHS
hence proved.
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