Chapter-10 ➤ Mensuration 1. The perimeter of a regular pentagon of side 1 m is 5 m 10 m 15 m 20 m 2. Perimeter of a square = 4 × Length of a side 2 × Length of a side 3 × Length of a side 6 × Length of a side 3. The perimeter of a square is 8 m. Find the length of the side. 1m 2m 4m 8m 4. The area of a rectangle of length 2 cm and breadth 1 cm is 1 cm² 2 cm² 4 cm² 8 cm² 5. Area of a rectangle = Length × Breadth Length + Breadth 2 × (Length + Breadth) 2 × (Length × Breadth) 6. Perimeter of a regular hexagon = 3 × Length of a side 4 × Length of a side 5 × Length of a side 6 × Length of a side 7. The perimeter of a rectangular piece of card board is 6 m. Its breadth is 1 m. Find its length. 1 m 2 m 3 m 6 m 8. The area of a rectangular sheet of paper is 20 cm². Its length is 5 cm. Find its width. 1 cm 2 cm 3 cm 4 cm 9. A rectangular piece of land measures 0.5 km by 0.25 km. Each side is to be fenced with 4 rounds of wire. What is the length of the wire needed? 2 km 3 km 4km 6 km 10. The perimeter of an equilateral triangle is 9 m. Find the length of the side. 1 m 2 m 3 m 9 m Loading … Question 1 of 10