Asked by indira
The length of a rectangle is twice its breadth. If the perimeter is 42cm, find:
1) the length
2) the breath
1) the length
2) the breath
Answers
Answered by
Ms. Sue
P = 2L + 2W
42 = 2(2W) + 2W
42 = 6W
7 = W
42 = 2(2W) + 2W
42 = 6W
7 = W
Answered by
Jyoshna
Let the breadth of rectangle be xm
Length _ 2xm
Perimeter_2 (length + breadth)
Perimeter_ 2 (x+2x)
_ 6x _42m
_3x _21m
On solving we get
x_7m
Breadth_ 7m
Length_ 14m
Area _ length x breadth
_ 14 x 7
Area_ 98 m²
Length _ 2xm
Perimeter_2 (length + breadth)
Perimeter_ 2 (x+2x)
_ 6x _42m
_3x _21m
On solving we get
x_7m
Breadth_ 7m
Length_ 14m
Area _ length x breadth
_ 14 x 7
Area_ 98 m²
Answered by
don
bakwas
Answered by
don
first one good
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