Question

9. Prove that the sum of the angles of a triangle is 180

Answer 1

Step-by-step explanation:

,60+60+60=180

triangle have three sides

Answer 2

Answer:

to prove any traingle add the all angles of that traingle

Step-by-step explanation:

ex - a traingle has 3 angles 1 = 70 , 2= 80 , 3 = 90. now we check is this right traingle. add all = 70+80+90 = 240. so, this is not a right traingle. please mark me as brainliest answer.