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5 July, 03:35

A pair of vertical angles has measures

(2z+43) °

and

(-10z+25) °

.

What is the value of z? Vertical angles = each other

(2z+43) °

=

(-10z+25) °

-

3

2



-

11

4





-31

+2
Answers (1)
  1. 5 July, 03:51
    0
    (2z+43) = (-10z+25)

    -2z - 2z

    43=-12z+25

    -25 - 25

    18=-12z

    z=-1.5

    So Z=3/2
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