Perimeter and Area — Practice

Q1. The perimeter of any closed plane figure is best described as

• A. The number of sides that the figure has
• B. The area of the region inside the figure
• C. The total distance covered along its boundary when you go around it once
• D. The length of the longest side of the figure

Q2. The perimeter of a polygon is equal to

• A. The sum of the lengths of all its sides
• B. The product of the lengths of all its sides
• C. Twice the length of any one side
• D. Half the length of its longest side

Q3. The perimeter of a rectangle of length l and breadth b is given by the formula

• A. l + b
• B. 2 × (l + b)
• C. l × b
• D. 4 × l

Q4. A rectangle ABCD has length 12 cm and breadth 8 cm. What is its perimeter?

• A. 20 cm
• B. 32 cm
• C. 40 cm
• D. 96 cm

Q5. If the length of one side of a square is s, then the perimeter of the square is

• A. s + s
• B. 2 × s
• C. s × s
• D. 4 × s

Q6. Debojeet wants to put coloured tape all around a square photo frame of side 1 m. The length of tape he needs is

• A. 4 m
• B. 2 m
• C. 1 m
• D. 8 m

Q7. The perimeter of a triangle is equal to

• A. Three times the length of its longest side
• B. The sum of the lengths of its three sides
• C. Twice the length of any one side
• D. Half the sum of the lengths of any two sides

Q8. A triangle has sides of lengths 4 cm, 5 cm and 7 cm. What is its perimeter?

• A. 12 cm
• B. 14 cm
• C. 16 cm
• D. 140 cm

Q9. The perimeter of an equilateral triangle of side a is

• A. a
• B. a + a
• C. 2 × a
• D. 3 × a

Q10. The area of a closed figure is best described as

• A. The total length of its boundary
• B. The amount of region enclosed by the figure
• C. The number of corners it has
• D. The length of its longest diagonal

Q11. Area is generally measured in

• A. Square units (such as sq cm or sq m)
• B. Length units (such as cm or m)
• C. Volume units (such as litres)
• D. Mass units (such as grams)

Q12. The area of a rectangle of length l and width w is given by

• A. l + w
• B. 2 × (l + w)
• C. l × w
• D. 4 × l × w

Q13. The area of a square of side s is

• A. 4 × s
• B. 2 × s
• C. s + s
• D. s × s

Q14. On a squared paper where each small square measures 1 unit × 1 unit, the area of one full small square is taken as

• A. 1/2 sq unit
• B. 1 sq unit
• C. 2 sq units
• D. 4 sq units

Q15. Which of the following is a correct unit for the perimeter of a figure?

• A. Square metre (sq m)
• B. Square centimetre (sq cm)
• C. Centimetre (cm)
• D. Cubic centimetre (cu cm)