Question

If sides A and B of a triangle have lengths of 3 and 4 respectively, and the angle between them is `(7pi)/8`, then what is the area of the triangle?

Answer 1

`color(crimson)(Area = 2.3 " sq units"`

Explanation:

`a = 3, b = 4, hat C = (7pi)/8, Area = ?`

`Area = (1/2) * a * b * sin C`

`=> (1/2) * 3 * 4 * sin((7pi)/8) = 2.3 " sq units"`