khemphill4118
29.07.2021 •
Mathematics
A. 83°
B. 90°
C. 97°
D. cannot be determined
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Ответ:
90
Step-by-step explanation:
c is perpendicular to b
That means angles 5,6,7,8 are 90 degrees
a is parallel to c
That means b is perpendicular to a
That means that 1,2,3,4 are 90 degrees
<1 = 90 degrees
Ответ:
the answer is C yw :)
Step-by-step explanation: