3 years ago

In the given figure, O is the centre of the circle. For

Mathematics

1 answer:

nordsb [41]3 years ago

5 0

Answer:

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

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