Question

Someone help please!?!

Answer 1

Answer: a≈6,1.

Explanation:

The sine theorem states:

`\boxed {(a)/(sinA^0) =(b)/(sinB^0)= (c)/(sinC^0) }`, ⇒

`a=(c*sinA^0)/(sinC^0)`

m∡A=180°-(m∡B°+m∡C°)

=180°-(68°+76°)

=180°-144°

=36°. ⇒

`a=(c*sin36^0)/(sin76^0)\\ =(10*sin36^0)/(sin76^0) \\\approx6,1.`

Good luck an' have a nice day!