Two triangles ABC and PQR are congruent. If the area of $\triangle ABC$ is 60 sq. cm, then area of $\triangle PQR$ will be1). 60 sq.cm2). 30 sq.cm3). 15 sq. cm4). 120 sq. cm
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1. perimeter of one face of a cube is 20cm. Its volume will be
2. A right cylindrical vessel is full with water. How many right cones having the same diameter and height as that of the right cylinder will be needed to store that water (Take $\pi$ = $\frac{22}{7}$)
3. If the length of the rectangle is increased by 40% and breadth decreases by 50% and this whole process is repeated again then what will be the percentage change in area?
4. Water is flowing at the rate of 3 km/hr through a circular pipe of 20 cm internal diameter into a circular cistern of diameter 10 m and depth 2m. In how much time will the cistern be filled?
5. The volumes of a right circular cylinder and a sphere are equal. The radius of the cylinder and the diameter of the sphere are equal. The ratio of height and radius of the cylinder is
6. A tank is formed in a cylindrical form of the radius 14 cm and height 32 cm. How much water it can store?
7. The perimeter of a rhombus is 100 cm. If one of its diagonals is 14 cm, then the area of the rhombus is
8. An equilateral triangle and a regular hexagon have equal perimeters. The ratio of the area of the triangle and that of the hexagon will be
9. In each of the following questions, a question and three statements I, II and III are given. You have to decide whether the data given in the statements are sufficient to answer the question or not.
10. The length and breadth of a rectangle are increased by 12% and 15% respectively. Its area will be increased by :
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