Question

How do i find the missing angles of a triangle?

Answer 1

By using any of these methods :-

Explanation:

1) use the fact that sum of all the angles of a triangle ia `180` degree.

2) use Sine formula. `[ a/sinA = b/sinB = c/sinC ]`

3) use Cosine formula.`[ cosA = (b^2+c^2-a^2)/(2bc)]`

`rarr`where `A` denotes `/_A`

`rarr` `a` denotes side opposite to `/_A`