Question

Let the increase of triangle ABC is I (2,5).

Answer 1

Answer:

Given : Area of triangle ABC =

2

3

−1

Area of triangle will be =

2

bcsinA

⟹

2

3

−1

=

2

2(

3

−1).sinA

⟹

2

3

−1

=(

3

−1)sinA

⟹sinA=

2

1

⟹A=30

0

.