talia43
31.08.2021 •
Mathematics
72°
Х
X=
degrees.
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Ответ:
x = 18°
Step-by-step explanation:
Sum of all angles of a triangle = 180°.
So, 90° + 72° + x = 180°
=> 162° + x = 180°
=> x = 180° - 162°
=> x = 18°
Ответ:
18
Step-by-step explanation:
triangle =180
72+90=162
180-162
=18
Ответ: