Q 26. Find the area of a square park whose perimeter is 320 m or The perimeter of a rectangular sheet is 100 cm, if the length is 35 cm, Find its breadth? Q 27. Simplify the expression if, x = 2 x + 7 + 4 (x-5)
Q 28. Express the following numbers in standard form: A) 50000000 B) 390878
Q 29. Determine the number of edges, vertices and faces in the given figure.
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Q 30. If three cubes of dimensions 2 cm × 2 cm × 2 cm are placed end to end, what would be the dimension of the resulting cuboid?
Q 31. Draw an equilateral triangle whose each side is 4.5 cm. or Draw a ΔPQR, in which QR = 3.5 cm, m∠Q = 40°, m∠R = 60°.
Q 32. The length and breadth of a rectangular field are equal to 600 m and 400 m respectively. Find the cost of the grass to be planted in it at the rate of ₹ 2.50 per m2.
Q 33. Find the perimeter of the given figure ABCDEF.
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Q 34. Simplify the following expressions and then find the numerical values for x = -2.
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Q 35. How many lines of symmetry do the following have: (a) a parallelogram (b) an equilateral triangle (c) a right angle with equal legs (d) an angle with equal arms (e) a semicircle (f) a rhombus
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Q 36. Find the sum of
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OR Arrange the following rational numbers in ascending order.
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Q 37. Evaluate:
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Q 38. A rectangle park is 45 m long and 30 m wide. A path 2.5 m wide is constructed outside the park. Find the area of the path.
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