makiasdillard0925
26.02.2020 •
Mathematics
Quadrilateral ABCD is inscribed in a circle. If angle A measures (3x – 10)° and angle C measures (2x)°, find x.
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Ответ:
X =38
Step-by-step explanation:
A and C should be opposite to each other.
Since they are in a circle
A+ C = 180 degrees
Therefore
(3x - 10) + 2x = 180
5x =180 +10
5x = 190
X = 38
Ответ: