Question

3. 36 unit squares are joined to form a rectangle with the least perimeter.

Perimeter of the rectangle is

(a) 12 units (b) 26 units

(c) 24 units (d) 36 units​

Answer 1

Answer:

Given, side of each square = 1 unit

No. of squares = 36

Now, let us assume the perimeter of the rectangle formed = p

Then, p = 2 (l + b)

Now, p (min) = (l + b) (min)

This is only possible when we get least values of l and b.

The possible values of l and b can be (36, 1); (18, 2); (12, 3); and (9, 4)

So, (l+b) (min) = 9+4 = 13

Hence, the required perimeter = p (min) = 2 × 13 = 26 units

HOPE THIS COULD HELP!!!

Answer 2

Answer:

answer is the second one 26 units