Amelliadellon45 Amelliadellon45
  • 02-04-2020
  • Mathematics
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Helppppppppppp please and expalin if you can

Helppppppppppp please and expalin if you can class=

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DeanR
DeanR DeanR
  • 02-04-2020

The angle subtended by a diameter is always right.  That's Thales' Theorem, one of the first in geometry.  We conclude y=90°.

The angle subtended by an arc is half the arc length, so z=50°.

The angles in a triangle add to 180°, so x = 180° - y - z = 40°.

Answer: x=40°, y=90°, z=50°

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