Maths-week4

    Task two-maths

 1.I know,

Base,b =5.4cm

Height,h=3.8cm

Find out :

Area of the triangle=?

Solution:

Area of the triangle = b×h÷2

The area of triangle in pic 1 = 5.4cmx3.8cm ÷ 2

=20.52 cm square ÷ 2 

=10.26cm squared

                                              

2.I know,

Base,b =0.5cm

Height,h=3cm

Find out :

Area of the triangle=?

Solution:

Area of the triangle = b×h ÷ 2

The area for pic 2 =

0.5cmx3cm ÷ 2

=1.5cm squared ÷ 2

=0.75cm squared 

3.I know,

Base,b =3.2cm

Height,h=2.2cm

Find out :

Area of the triangle=?

Solution:

Area of the triangle = b×h÷2

The area for pic 3 is-

3.2cmx2.2cm

=7.04cm square ÷ 2

=3.5cm square 

Task three-maths

Q. Why finding the area of a right-angled triangle is base multiplied by height, divided by 2?

A.Because when a square or rectangle is divided in half diagonally it becomes a right angled triangle. As the area of a rectangle is length x width the right-angle triangle is the half of it.