Mathematics
A cylindrical metallic wire is stretched to double its length. Which of the following will NOT change for the wire after stretching?
Its curved surface area
Its total surface area
Its volume
Its radius
Related Questions
In the given diagram, O is the center of the circle, and PQ is a tangent at A. If ∠ABC = 50°, then values of x, y and z respectively are :
50°, 100°, 40°
50°, 50°, 65°
40°, 80°, 50°
50°, 25°, 78°
In the given figure, PT and QT are tangents to a circle such that ∠TPS = 45° and ∠TQS = 30°. Then, the value of x is :
30°
45°
75°
105°
A solid sphere with a radius of 4 cm is cut into 4 identical pieces by two mutually perpendicular planes passing through its center. Find the total surface area of one-quarter piece.
24π
32π
48π
64π
