Question

If sides A and B of a triangle have lengths of 5 and 6 respectively, and the angle between them is `(pi)/2`, then what is the area of the triangle?

Answer 1

`15"sq.unit"`.

Explanation:

`"The angle btwn. sides A and B, i.e.," /_(A,B)=pi/2`.

So, if we consider the side `B` as Base, then side `A` becomes

altitude on the base. Therefore,

The Area of the `Delta=1/2xx"base"xx"altitude"`

`=1/2*5*6=15"sq.unit"`.