Question

How do you find the area of `triangle ABC` given `C=25^circ, a=4, b=7`?

Answer 1

`A=5.92" " sq. units(2 dp)`

Explanation:

One of the formulas for area of a triangle is:

`A=1/2xxaxxbxxsinC`

In this case we have

`A=1/2xx4xx7xxsin25`

`A=5.916655664`

`A=5.92" " sq."" units(2 dp)`