Question

the length of rectangle is 10m more than its breadth.if the perimeter of rectnagle 100m. find its length and breadth.


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Answer 1

Answer:

hello...

Step-by-step explanation:

Let the breadth = x cm

length = x + 10

perimeter = 80 cm

2(l+b) = 80 cm

l +b = 40

x + 10 + x = 40

x = 15 cm

then, length = 15 +10 = 25

1 = 25 cm

Dimension (l,b) = ( 25 cm, 15 cm)

area = l × b

= 25 × 15

= 375 cm .

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Answer 2

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the length of rectangle is 10m more than its breadth.if the perimeter of rectnagle 100m. find its length and breadth.

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let the breadth of rectangle be x

length of rectangle=x+10

ᴘᴜᴛ ᴀʟʟ ᴛʜᴇ ᴍᴀᴛᴇʀɪᴀʟs ɪɴ ᴛʜᴇ ғᴏʀᴍᴜʟᴀ

formula of perimeter of rectangle100=2(l+b)

100=2(x+10+x)

100=2x+20+2x

100=4 x+20

100-20=4x

80=4x

80/4=x

20=x

now we have known the breath is 20m

hence ,we need to take out the length =x+10

=20+10m

=30 m

therefore,the lenght and breadth of rectangle are =

length =30m

breadth=20m

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