Question

A rectangular field is 112 m long and 100 m wide.
Two cross roads each of width 5 m
constructed at the centre of this field, one is
parallel to the length of the field and the other is
parallel to the breadth of the field, find :
(a) area of the two cross roads.
(b) area of the remaining field.
(C) cost of laying grass in the remaining field at
the rate of 2 per m²​

Answer 1

Step-by-step explanation:

Explanation:

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, a is just the lenght of one side of a cube.

We have 96 = 6a2 → a2 = 16, so that's the area of one face of the cube.

Solving we get √16, so a = 4