Question

the perimeter of a rectangle is 130cm if the breadth of the rectangle is 30cm find its length also find the area of the rectangle​

Answer 1

Perimeter of rectangle=2(l+b)

130 cm=2(l+30cm)

130 cm=2l+60cm

2l=130cm-60cm

2l=70cm

l=35cm

area=l×b

area=35cm×30cm

area=1050cm²

Answer 2

perimeter of rectangle= 130cm

2(length+breadth) = 130 cm

2( length+ 30 cm ) = 130 cm

length + 30 cm = 130/2

length + 30 cm = 65 cm

length= 65 - 30

length= 35 cm

Area of rectangle= length * breadth

= 35 * 30.

= 1050 cm square

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