Question

. In the figure, if x, y and z are exterior angles of ΔABC then x + y + z is:​

Answer 1

Answer:

sum all of interior angles= 360

Step-by-step explanation:

the, x+y+z =360

Answer 2

Answer:

x+y+z = 360°

Step-by-step explanation:

exterior angle = sum of opposite interior angle

x = A+B

y = A+C

z = B+C

x+y+z = (A+B) + (A+C) + (B+C)

=> x+y+z = 2A+2B+2C = 2(A+B+C)

now A+B+C = 180° ...{ sum of interior angle of triangle is 180°}

=> x+y+z = 2(180)

=> x+y+z = 360°