NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Multiple Choice Questions
Question 3

Question. 3

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

(a)

(a) 12 units

(b)

(b) 26 units

(c)

(c) 24 units

(d)

(d) 36 units

Detailed Answer with Explanation:

Area = 36. Factors close to a square: 6 × 6 = 36.

But we need least perimeter rectangle, so choose 9 × 4.

Perimeter = 2(9 + 4) = 26 units.