Question

the perimeter of a rectangles is 130m,if its breadth is 30m find its length and area​

Answer 1

Answer:

Perimeter=2(length+breadth)

130=2(length+30)

130/2=length+30

65=length+30

length=35m

Area=length×breadth

=35×30=1050m^2

Answer 2

$perimeter \: of \: a \: rectangle = 2(l + b)$

therefore, 130= 2( l +30)

130= 2l + 60

130 - 60=2l

70=2l

therefore, 70÷ 2=l

l=45

therefore, 45m is the length

$area \: of \: a \: \:rectangle = l \times b$

therefore, area= 45 x 30

= 135

therefore, 135sq.m. is the area

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