jshhs
26.10.2020 •
Mathematics
Angle pair equations!! 10 points :)
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Ответ:
78°
Step-by-step explanation:
(I'm assuming that segment AB is a straight line {180 degrees})
1. since angles DCA and DCB equals 180°, we can set up the equation 4x+2+3x+3=180.
2. if you solve that, you'll get x=25.
3. plug 25 (x) into 3x+3 -> 3(25)+3
4. 3(25)+3=78
5. 78°
Ответ:
x=15
Step-by-step explanation: