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(02.07)Which relationship is always true for the angles r, x, y, and z of triangle ABC?
A-x + Z=Y
B-180 degrees - x=r
C-X+ y + z = 180 degrees
D-x+ y + z = 90 degrees

The correct answer is B: 180 degrees - x = r

Step-by-step explanation: Sum of angles on a straight line equals 180, therefore;

x + r = 180

Subtract x from both sides of the equation

r = 180 - x.

The other three options do not satisfy any of the conditions of triangle ABC.

the answer is A

Step-by-step explanation:

y and z will - 180 with r

answer: 1 and 3

step-by-step explanation:

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