in a figure, the side of a rectangle are given. the length are in cm. find the length and breadth of rectangle.
Length = 4x+2y, 2x+3y+4.
Breadth = 2x+y+2, 3x-y+3
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Answer:
What is the perimeter and area of rectangle if length is 2x+y+8 & 4x-y and breadth is 2y and x+4 respectively?
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4 Answers

Ved Prakash Sharma, former Lecturer at Sbm Inter College, Rishikesh (1971-2007)
Answered June 1, 2018
2x+y+8=4x-y.
or -2x+2y=-8.
or x-y = 4………………..(1).
x+4 = 2y.
x-2y = -4……………………(2).
Subtract eq (2) from (1) , y = 8 .
put y=8 in eq.(1) . x-8=4 => x=12 units
length (l) =2x+y+8=24+8+8=40 units.
bredth (b)=2×8= 16 units.
Perimeter = 2×(l+b)=2×(40+16) =112 units.
Area =l×b =40×16 =640 sq.units.
Answer:
what are the lengths 4x+2y or 2x+3y+4