Question

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Answer 1

Answer:

6

explanation

28=2(l+b)

28=2(8+b)

28/2=8+b

14 - 8=b

6=b

Answer 2

Answer:

let x be the missing side of rectangle & 8m is given another side.

Given perimeter of rectangle=28m

But perimeter of rectangle (formula) =2(Length+Breadth)

perimeter of given rectangle=2(8+x) =28

=16+2x=28

=2x=28-16

=2x=12

=x=6m.

HENCE, MISSING SIDE OF RECTANGLE=X=6M.