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Q.1. Find the total distance covered by an athlete in taking 2 rounds of a rectangular park of length 150 m and breadth 80 m.
Ans. 920 m
Q.2. A tailor wants to put lace around a square table cloth of side 20 cm. He bought 1 m lace from the market. Find the length of lace left with him after completing the task.
Ans. 20 cm
Q.3. The length of a rectangular park is 50 m and its area is 650 m2. Find its breadth.
Ans. 13 m
Q.4. Find the number of square tiles required to cover the floor of a room whose length is 4 m and width 3 m, if each square tile is of side 0.2 m.
Ans. 300 tiles
Q.5. Two equal sides of an isosceles triangle measure 10 cm each. Find the length of its third side if its perimeter is 32 cm.
Ans. 12 cm
Q.6. A piece of string is 60 cm long. What will be the length of each side if the string is used to form :
(a) a square
(b) an equilateral triangle
(c) a regular pentagon
Ans.
(a) 15 cm
(b) 20 cm
(c) 12 cm
Q.7. A farmer's rectangular graden is adjacent to his house, (as shown in the figure).
The rectangular garden is 200 m long and 150 m wide. Find the cost of fencing three sides of this garden at the rate of 12 per meter.
Ans. 550 × 12 = 6600
Q.8. Find the perimeter of each of the following figures : (The measures are given in cm)
Ans.
(a) 26 cm
(b) 18 cm
(c) 30 cm
Q.9. Find the area of each of the following figures : (The measures area given in cm)
Ans.
(a) 14 sq. cm
(b) 8 sq. cm
(c) 7 sq. cm
Q.10. Complete the crossword : Across →
(1) Perimeter (in cm) of an equilateral triangle of side 220 cm.
(3) Perimeter (in cm) of a regular hexagon of side 84 cm.
(5) 4 m 25 cm = ________ cm.
Down ↓
(2) Perimeter (in cm) of a regular pentagon of side 120 cm.
(4) Number of unit squares (sq. cm.) enclosed in a square of side 22 cm.
(6) Distance covered along a triangular park (in 1 round) measuring 12 m, 20 m and 23 m. (distance in m)
Ans.
(1) 660
(2) 600
(3) 504
(4) 484
(5) 425
(6) 55
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