Question

perimeter of rectangle is 240,length is 80 find breadth?​

Answer 1

perimeter of rectangle =2(l+b)== 240m.

Length of rectangle=80m. 2(l+b)=240 substituting l=80m 2(80+b)=240 ==== 160+2b=240 ======= 2b=240-160 ===== 2b=80 b=80/2====== b=40m.

Answer 2

perimeter of a rectangle=240

we know that 2(L+B)=240

=L+B=120

WE KNOW THAT L=80

SO,BY SUSTITUTING ,WE GET,

80+B=120

B+120-80=40

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