the length of a rectangle is twice its breath the perimeter of the rectangle is 120 cm find the length and breadth of this rectangle
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1
Answer:
Length=2x
Breadth=X
Perimeter=120
Perimeter=2(l+b)
120=2(2x+X)
120=2(3x)
120=6x
X=120/6
X=20
Length=2x=2×20=40
Breadth=X=20
Area = l×b
Area = 40 × 20
Area = 800
Answered by
2
Let the breadth be x
the length be 2x
ATP
2(2x+x) = 120
=) 4x+2x = 120
=) 6x = 120
=) x = 120/6 = 20
Ans:- Length = (2×20) = 40 and Breadth = 20
Verified ✔️✔️
2(40+20) = 120
=) 2×60 = 120
=) 120 = 120
LHS = RHS [Proved]
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