edjiejwi
14.03.2022 •
Mathematics
Find the value of x.
(2x + 21)
54°
(5x + 6)
Solved
Show answers
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Ответ:
x= 9.3 but im not to sure this is right
Step-by-step explanation:
Ответ:
(2x+21)+(5x+6)+90+54=360
7x + 171 = 360
7x = 360 - 171
7x = 189
Divide through by 7
x = 27
Note the other unnamed angle in the fig is 90 ° .The sign there is the conventional sign for angle 90 °
Ответ: