1 / 10
00
axis/height of the cone
base of the cone
Is the sentence true or false?
We can generate a right cone by revolving a right triangle about one of its legs.
true
false
Complete :
A cone is a three-dimensional shape having a circular base and narrowing smoothly to a _______ above the base.
Square
point
Rectangle
Any section of right circular cone parallel to the base forms a circle lies on the____________.
axis of the cone
Curved surface area of right circular cone = π r l.
A right circular cone is one whose axis is perpendicular to the plane of the base.
Volume of a right circular cone = ___________.
13πr2h\frac{1}{3}\pi r^2h31πr2h
12πr2h\frac{1}{2}\pi r^2h21πr2h
Complete:
When the apex is away from the base center, the cone is ________________.
right
not right
The altitude of a right cone is the perpendicular line from the vertex to the centre of the base. It coincides with the axis of the cone and is represented by ‘h’.
It is done.