Answer:
C. 70°
Step-by-step explanation:
The inscribed angle marked 15° intercepts an arc that is double that measure, so the intercepted arc on the right is 2×15° = 30°.
The external angle marked 20° is half the difference of the intercepted arcs, so is ...
20° = (1/2)(x - 30°)
40° = x - 30° . . . . . . multiply by 2
70° = x . . . . . . . . . . . add 30°
The value of x is 70°.
To find T, you add 25 to both sides, isolating the varible. This gives you T=-19
Hope this helped!
Answer:
y axis
Step-by-step explanation:
BD=10 because it is symmetrical to AD.
Answer:
Step-by-step explanation:
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