Thanks for helping ]]>

Bob

]]>Did you try plotting the points? Have a look at my diagram.

I think you'll see what to do then.

Bob

]]>I answered C for both it was incorrect

19. The given points (4, -8), (4, -5), and (-2, -6) make a right triangle.

A Distance Formula

B Definition of a right triangle

CDefinition of a triangle

Dunfounded

E Pythagorean Theorem

F Definition of radius

20. The given points (2, -3), (-7, -7), (2, -7), and (-7, -2) make a square.

A Definition of coordinate

BPythagorean Theorem

CDefinition of a square

DDefinition of supplementary angles

E Distance Formula

F unfounded

Bob

]]>Bob

]]>16. If a radius bisects a chord, then the lengths of the parts of the radius on either side of the chord are equal.

A Given

BDefinition of a chord

Cunfounded

DDefinition of supplementary angles

E Definition of a bisector

F Definition of radius

Bob

]]>my new answer is D

14. If a central angle is 30 degrees, then the arc it defines is also 30 degrees.

A Given

BDefinition of an inscribed angle

Cunfounded

DProperties of a central angle

E Properties of an arc

F Definition of radius

Bob

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