Question

: If a triangle has vertices A, B and C then prove that area of triangle is
1/2| B x C + Čx Å + A x Bl.​

Answer 1

Answer:

Given b=c=1

l=

3

2

Area of △le=

2

1

.Bc.d.

△=

2

1

a.

3

2

a=

2

2△

3

=

2

2

3

△

we have to find

′

R

′

which is circumradius

R=

4△

abc

=

4△

(

2

2

3

△).1.1

2

2

3

solution