Shape and Space -Mathematics

Let's hear the shapes song before we learn more! Make sure you hear it until the end because I love the ending!

Two-dimensional shapes (2D Shapes):

Three-dimensional shapes (3D Shapes):

Sometimes, there are questions that involve us to name the
names of 3-D Shapes. I would advise you to remember the

se

Perimeter

How to calculate the perimeter of a shape. Example:

Perimeter Rectangle= (5cm+5cm+12cm+12cm) Two lines have same length

                              = (10cm+24cm) ----> 34cm

Perimeter Square= (5cm+5cm+5cm+5cm) All of the sides are of the same length

                         = 20cm

Perimeter Triangle = (5cm+7cm+6cm) According to the type of triangle

                             = (12cm+6cm) ---> 18 cm

Area

Area of a square: length x breadth (a x a)

Area of rectangle:length x breadth (a x b)

Area of a triangle: length x breadth, then divide by 2

Volume

Volume Square: length x breadth x height (a x a x a)

Volume rectangle: length x breadth x height (a x b x c)