find x...............
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Answer:
x = 50
Step-by-step explanation:
angle ACB + angle ACD = 180
or, angle ACB + 100 = 180
or, angle ACB = 180 - 100
or, angle ACB = 80
In triangle ABC,
angle A + angle B + angle C = 180
or, angle A + angle B + 80 = 180
or, angle A + angle B = 180 - 80
or, angle A + angle B = 100
therefore, angle A = 100 / 2 = 50
hope this helps you and brainliest please
Answer:
100-180=80 (line segment)
B=C
80=80
A+B+C
80+80+A=180
160+A=180
A=20