Question

the sum of the three angle of a triangle is _____​

Answer 1

Answer: The sum of the three angles of any triangle is equal to 180 degrees.

Step-by-step explanation: I hope it will help u..plz..mark me as the Brainliest

Answer 2

The sum of three angles of a triangle is 180 degrees.

Step-by-step explanation:

Consider a Δ$ABC$, draw a line $PQ$ through $A$ which is parallel to $BC$. (refer the figure below)

Let

∠$ABC=x$ ,

∠$BCA=z$,

∠$CAB=y$ ,

∠$PAB=m$ and

∠$QAC=n$

Now, since $PAQ$ is a straight line, so

$m+y+n=180^{o}$

From alternate interior angles,

$m=x\\n=z$

Therefore, $x+y+z=180^{o}$