7. The points ​(−2​,−4​) and ​(5​,6​) are the endpoints of the diameter of a circle. Find the length of the radius of the circle.

7 The points 24 and 56 are the endpoints of the diameter of a circle Find the length of the radius of the circle class=

Respuesta :

Answer

6.10

Use the distance formula:

[tex]\sf d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]

where (x1, y1), (x2, y1) are points

[tex]\rightarrow \sf d =\sqrt{(5-(-2))^2 + (6-(-4))^2}[/tex]

[tex]\rightarrow \sf d =\sqrt{(7)^2 + (10)^2}[/tex]

[tex]\rightarrow \sf d =\sqrt{149}[/tex]

This is the length of diameter.

Then radius:

· diameter/2

[tex]\sf \cdot \dfrac{\sqrt{149 } }{2}[/tex]

[tex]\sf \cdot 6.103277808[/tex]

[tex]\sf \cdot 6.10 \ \ (rounded \ to \ nearest \ hundreth)[/tex]