A large cube of volume 64 cubic metre is broken down into small cubes of volume 8 cubic metre each. The percentage increase in the surface area is
correct answer:-2
Five spheres, each of radius 3 cm, are melted to form a new cylinder of the same radius. What is the height of the cylinder formed?
correct answer:-2
If (3,2) is the centroid of a triangle of vertices A(x,1), B(4,6) and C(-1, y) then find the value of (x+y) ?
correct answer:-3
Find the radius of the circle that circumscribes an equilateral triangle of side 6 cm.
correct answer:-4
If the radius and height of a solid cone are increased by 10% and 20% respectively. By what percentage the volume of the cone is increased?
correct answer:-4
The area of the circle is 616 m². What is the area of the rectangle? (• or ‘dot’ or indicates centre of the cirlce the.)
correct answer:-3
In the given diagram, ABCD is a square of area 300 sq. cm. If triangle ABE is an equilateral triangle. what is the radius of the circle shown in the figure ?
correct answer:-3