Question

Prove that the sum of measures of all angels of a triangle is 180°.​

Answer 1

Answer:

angle a+ angle b + angle c = 180 ( angle sum property of triangle .

Step-by-step explanation:

if a= 40 , b= 90 ,then c= ?

40+ 90 + c = 180

130 +c = 180

c= 180- 130

c= 50