Question

1. The lenght of a rectangle is 3 times its breath
y the perimeter is 84m, find the lenght of
the rectangle​

Answer 1

Answer:

lenth of rectangle= 31.5meter

Step-by-step explanation:

lenth of rectangle = 3y

breadth = y

perimeter of the rectangle= 84m

perimeter of a rectangle = 2(l + b) or 2l +2b

84m = 2(3y + y)

84m = 2(4y)

84/2 = 4y

42/4 = y

10.5m = y

breadth = 10.5m

length = 3y = 3*10.5 = 31.5m