The length of a rectangle is 4 cm more than its breadth.If the perimeter is 84 cm.
(a)length+breadth=_______?
(what is the sum of its length and breadth? )
(b)find the length and breadth of the rectangle:-
Answers
Answered by
0
Answer:
Then it's length = x+4 cm
Perimeter of the rectangle= 2(l+b)
= 2(x+4+x) = 2(2x+4) = 4x + 8 cm
But perimeter of the rectangle = 40 cm
So. 4x + 8 = 40 => 4x = 40 - 8 => 4x = 32
=> x = 32/4 => x = 8
So breadth = 8 cm
Length of the rectangle = x+4 = 8+4=12 cm
Similar questions