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3 years ago

X+y=180 degrees (being angles a straight line)

Mathematics

1 answer:

Andrei [34K]3 years ago

4 0

Answer:

x, y. and 40 are the angles of a triangle.

x+y+40=180

x+y=140

difference between x and y is 30.

x−y=30 (2)

2x=170

⇒x=85

Substitute this value n equation (2), we get

85−y=30

⇒y=85−30

⇒y=55

angles of a triangle are x=85, y=55 and 40.

Step-by-step explanation:

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