Nolife012603
20.10.2020 •
Mathematics
ZA and ZB are vertical angles. If mZA = (4x + 14) and mZB = (5x – 5)°, then find the measure of ZA.
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Ответ:
90°
Step-by-step explanation:
Since they are vertical angles, they equal eachother
4x+15=5x-5
add the 5 to both sides
4x+19=5x
subtract the 4x from both sides
x=19
Then you have to plug in 19 to find the measure of ZA
4(19)+14
76+14
90
Ответ: