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2 years ago

The length of the rectangle is increased by 10%.

Mathematics

2 answers:

noname [10]2 years ago

8 0

Answer:

length_20 cm breadth_30 cm

Step-by-step explanation:

width of the rectangular_ 5/:. length of rectangular_10/:. primeter of rectangular_? now perimeter of rectangular_2(l+b). 2(20+30) __100#

jonny [76]2 years ago

3 0

Answer:

8% increase

Step-by-step explanation:

The length after the increase:

30 x 1.1 = 33cm

The width after the increase:

20 x 1.05 = 21cm

New perimeter:

2(33 + 21) = 108 cm^2

Old perimeter:

2(30 + 20) = 100 cm^2

Percentage increase of area:

108 / 100 = 1.08 = 8% increase

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