question_answer1) If the side of an equilateral triangle is 7 metres; its area (in sq. m.) is:
question_answer2) The sides of a triangle are: 25 m, 60 m and 65 m, its area is:
question_answer3) A parallelogram, the length of whose sides are 12 cm and 8 cm has one diagonal 10 cm long. The length of the other diagonal is:
question_answer4) If one side and one diagonal of a rhombus are 13 cm and 10 cm, its area in sq. cm. is :
question_answer5) The perimeter of a rectangle is equal to the perimeter of a right angled triangle of height 12 cms. If the base of the triangle is equal to the breadth of the rectangle, find the length (in cm) of the rectangle.
question_answer6) The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot Rs.26.50 per metre is Rs.5300, then what is the length of the plot in metres?
question_answer7) If the ratio of the areas of two squares is 9 : 1, then the ratio of their perimeters is:
question_answer8) For a trapezium parallel sides (in metres) are 11 and 25 and non - parallel sides (in metres) are 15 and 13, The area (in sq. m.) of the trapezium is:
question_answer9) Two poles 15 metres and 30 metres high stand upright in a playground. If their feet be 36 metres apart, find the distance between their tops.
question_answer10) Three spherical metal balls of radii 5, 8 and R cm are melted into a solid sphere of radius 12 cm. The value of R is:
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