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(02.07)
Which relationship is always true for the angles r. x, y, and z of Triangle ABC? (4 points)

0207 Which Relationship Is Always True For The Angles R X Y And Z Of Triangle ABC 4 Points class=

Sagot :

Answer:  Choice B) 180 - x = r

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Explanation:

Angles r and x form a straight line, or straight angle, that is 180 degrees.

We then can say

r+x = 180

r+x-x = 180-x .... subtract x from both sides

r = 180-x

180-x = r