if the length of a rectangle is increased by 20percent and breadth decrease by 20 percent then the new area
Answers
Answered by
14
Let L = 10
Let W = 10 (a square is a rectangle)
Original area = (LW) = 10*10 = 100
L increases by 20 percent:
(1.2)(10) = 12
W decreases by 20 percent:
(0.8)(10) = 8
New area: (12)*(8) = 96
Percent change:New−OldOld∗100New−OldOld∗100
96−100100=96−100100=
(−.04)∗100(−.04)∗100 = 4 percent decrease
Algebra
L = length
W = width
Area = (1)LW
Length increases by 20 percent, width decreases by 20 percent:
1.2L * 0.8W = (.96) LW
.96 is 4 percent less than 1
The area decreases by 4 percent.
Please mark as Brainliest.
Let W = 10 (a square is a rectangle)
Original area = (LW) = 10*10 = 100
L increases by 20 percent:
(1.2)(10) = 12
W decreases by 20 percent:
(0.8)(10) = 8
New area: (12)*(8) = 96
Percent change:New−OldOld∗100New−OldOld∗100
96−100100=96−100100=
(−.04)∗100(−.04)∗100 = 4 percent decrease
Algebra
L = length
W = width
Area = (1)LW
Length increases by 20 percent, width decreases by 20 percent:
1.2L * 0.8W = (.96) LW
.96 is 4 percent less than 1
The area decreases by 4 percent.
Please mark as Brainliest.
Answered by
10
The area of rectangle is decreased by 4%
Step-by-step explanation:
Let the original length be x
Let original breadth be y
Area of original rectangle =
The length of a rectangle is increased by 20percent
New Length =
The breadth decrease by 20 percent
New Breadth =
New Area =
Difference in original and new area = xy=0.97xy = 0.04 xy
Change in percentage in area =
=
Hence The area of rectangle is decreased by 4%
#Learn more :
https://brainly.in/question/12264368
If the length of a given rectangle is increased by 20percent and the breadth is decreased by 20percent then the result of area is
Similar questions
Social Sciences,
7 months ago
English,
7 months ago
English,
7 months ago
Math,
1 year ago
Social Sciences,
1 year ago
English,
1 year ago
Science,
1 year ago