Area of a rectangular park is 240m². If its length is 16m. then the breadth is (i) 15m (ii) 8m (ii) 14m
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Answered by
0
⇒x
2
+8x−240=0
⇒x
2
+20x−12x−240=0
⇒(x−12)(x+20)=0
⇒x=12(∵x
=−20)
∴ breadth of the park =12m and length =12+8=20m
2
+8x−240=0
⇒x
2
+20x−12x−240=0
⇒(x−12)(x+20)=0
⇒x=12(∵x
=−20)
∴ breadth of the park =12m and length =12+8=20m
Answered by
0
Step-by-step explanation:
Area =144m
2
Length =16m
Breadth=
16
144
=9m
Perimeter =2(l+b)
=2(16+9)
=2(25)=50m
Cost =6×50=300Rs.
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