Eaglesrule11
Answered

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Find the radius and diameter of circle A, if the endpoints of the radius
are (-2, -1) and (6,4).

Sagot :

Step-by-step explanation:

[tex]length \: between \: ( - 2, - 1) \: and \: (6,4) \\ = \sqrt{(x _{1} - x _{2} )² + (y _{1} - y _{2})² } \\ = \sqrt{( - 2 - 6)²+ ( - 1 - 4)²} \\ = \sqrt{64 + 25} \\ = \sqrt{100} \\ = 10 \: units \\ radius = 10 \: units \\ diameter = 2 \times radius \\ d = 2 \times 10 \\ d = 20 \: units[/tex]

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