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Sagot :
Answer:
d
Step-by-step explanation:
If chord BC passes through the centre then it is a diameter . then
∠ BAC is the angle in a semicircle and x = 90°
y = 180° - (90 + 25) ← angle sum in a triangle
y = 180° - 115° = 65°
Thus
x = 90°, y = 65° → d
In this exercise we have to use the knowledge of triangles inscribed in a circle, in this way it will be possible to calculate the angles, then:
Letter D
Knowing that it is a triangle inscribed in a circle, in this way we can describe it as:
- BAC is the angle in a semicircle and x = 90°
- Angle sum in a triangle is [tex]y = 180 - (90 + 25)[/tex]
So:
[tex]y = 180 - 115 = 65\\ x = 90\\ y = 65 [/tex]
See more about triangles at brainly.com/question/25813512
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