Question

1. (02.07)
Which relationship is always true for the angles x, y, and z of triangle ABC?


x + z = y
y + z =x
x + y + z = 180 degrees
x + y + z = 90 degrees​

Answer 1

SOLUTION :

$\sf \angle \: A \: + y + z = 180 \degree$

$\sf \implies \: 180 \degree - x + y + z = 180 \degree$

$\implies {\sf { \boxed { \sf{ \mathfrak{y + z = x}}}}}$