The length of a rectangle is 5cm longer than the its breadth. Find the length and breadth if the perimeter is 26 cm

6 answers

L = Length

B = Breadth

The length of a rectangle is 5 cm longer than the its breadth mean:

L = B + 5

P = 2 L + 2 B

P = 2 ( L + B )

Replace L with B + 5 inn this equation

P = 2 ( B + 5 + B )

P = 2 ∙ ( 2 B + 5 )

26 = 4 B + 10

Subtract 10 to both sides

16 = 4 B

Divide both sides by 4

4 = B

B = 4 cm

L = 4 + 5

L = 9 cm

P = 2 ( L + B )

P = 2 ∙ ( 4 + 9 )

P = 2 ∙ 13

P = 26 cm
Thanks, i actually mistook the perimeter formula to be P= L+B
Thanks
thanks
Thanks slot,I was really have a tough time with it
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