length of a rectangular field is 5m. more than its breadth. express it's area in variable 'x'
Answers
Answered by
3
==>Answer:-
breadth =25m
length=30m
Perimeter of the rectangular hall =2(l+b)=2(30+25)=110m
==>Step-by-step explanation:
Let the length of the rectangular hall =l m and breadth =b m.
Given, l=b+5
Area of the rectangle =l×b=750m
2(b+5)×b=750
b2+5b−750=0
b2 +30b−25b−750=0
(b−25)(b+30)=0
=>b=25 or −30
As breadth of the rectangular hall cannot be negative, breadth =25m
Now, length l=25+5=30m
Perimeter of the rectangular hall =2(l+b)=2(30+25)=110m
==> Hope it Helped, if it helped pls mark it as Brainliest
Answered by
19
Given
- Breadth = x cm
- Length = x + 5 cm
To find
- Area in terms of 'x'
Solution
- Area of rectangle = Length × Breadth
- Area = (x + 5) × (x)
- Area = x(x + 5)
- Area = x² + 5x
∴ The area is x² + 5x
Learn more
- Area of square = side × side
- Perimeter of rectangle = 2(length + Breadth)
- Perimeter of square = 4 × side
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