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A, B, C, D, E and F are points on a circle. put crosses on the ends of the line that is a diameter of the circle

A B C D E and F are points on a circle put crosses on the ends of the line that is a diameter of the circle class=

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sqdancefan

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Answer:

  AD is the diameter

Step-by-step explanation:

Angles in a triangle have a sum of 180°, so inscribed angle B is 80° and inscribed angle E is 90°.

An inscribed angle subtends an arc that is twice its measure, so arcs ABD and AED are both 180°. That makes chord AD a diameter.

Points A and D need your cross markings. AD is a diameter of the circle.

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