Question

Please guys answer fast Who will give answer I will like and Mark as Brainliest. Quickly guys. Answer me fast guys.

Jai Hind​

Answer 1

Answer:

the measures of interior angles of a triangle sum to 180°.

So

40°+80°+x= 180

120°+x=180

x=180-120=60

Answer 60

Answer 2

(refer to the attachment)

★GIVEN★

• $\large{\sf{\angle\:ABC=40\degree}}$
• $\large{\sf{\angle\:ACB=80\degree}}$

★To Find★

The value of x.

★SOLUTION★

We know that all angles of a triangle sum up to 180°.

According to the question,

$\large\implies{\sf{\angle\:ABC+\angle\:ACB+x=180\degree}}$

$\large\implies{\sf{40\degree+80\degree+x=180\degree}}$

$\large\implies{\sf{120\degree+x=180\degree}}$

$\large\implies{\sf{x=180\degree-120\degree}}$

$\large\therefore\boxed{\bf{x=\angle\:BAC=60\degree}}$

★VERIFICATION★

$\large\implies{\sf{\angle\:ABC+\angle\:ACB+\angle\:BAC=180\degree}}$

$\large\implies{\sf{40\degree+80\degree+60\degree=180\degree}}$

$\large\implies{\sf{180\degree=180\degree}}$

$\large\therefore\boxed{\bf{LHS=RHS}}$

So,

The unknown lettered angle x is 60°.