the length of a rectangle with perimeter 30cm is 10cm.hat is tge breadth of the rectangle
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Answered by
5
Perimeter of rectangle =2(a+b)
30=2(10+b)
30=20+2b
b=30-20/2
b=10/2=5cm
30=2(10+b)
30=20+2b
b=30-20/2
b=10/2=5cm
amitanet67pdg65n:
tnx
it will be -30 cause it has shifted from LHS to RHS...and the 20 will remain positive because it is in its own place...(RHS)
oooh
Answered by
2
Given,
Perimeter=30cm
Lenght=10cm
Perimeter=2(lenght+breadth)
30=2(10+b)
(multiply 2 with 10 and b)
30=20+2b
-2b= -30+20
-2b= -10
b= -10÷(-2)
b=5
Hence breadth is 5 cm.
Perimeter=30cm
Lenght=10cm
Perimeter=2(lenght+breadth)
30=2(10+b)
(multiply 2 with 10 and b)
30=20+2b
-2b= -30+20
-2b= -10
b= -10÷(-2)
b=5
Hence breadth is 5 cm.
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