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
]]>