Shapes
Give some examples of 2D & 3D shapes?
2D - Rectangle, Triangle, Square, Circle
3D - Cube, Cuboid, Sphere, Cylinder, cone
When we fold a picture in two halves and if both the halves match exactly equal then we say
Symmetrical
What is an Angle?
An angle is a shape formed by two line segment or rays diverging from a common point ( Vertex).
A Rectangle and 2 circles form the net of?
Cylinder
What is a Net?
We can describe a net as a two dimensional figure which can be folded to form a three dimensional figure.
How do we name an Angle?
We use 3 alphabets to name an angle. The center letter is the vertex.
This shape has height, slant height and radius
Cone
This is the line across which reflection takes place
Reflection axis
What are the different types of angles?
Acute angle, Obtuse angle, Right angle, Straight angle
What are 2D & 3D?
Shapes which have two dimensions namely length and breadth are called 2D shapes.
3D Shapes are solid objects that have three dimensions. These dimensions are length, width and height.
What is Symmetry?
Symmetry refers to the exact match in shape and size between two halves of an object.
What is the instrument that we use to measure angle?
Protractor