Given the center (1,2) and the point (4,2) is on the circle, what is the radius
of the circle?

The radius of the circle would be 3.

Step-by-step explanation:

The distance between the center coordinate and point on the circle will give you the radius. So use the distance formula to find the radius.

D = √(x2-x1)^2 + (y2-y1)^2

D = √(4 - 1)^2 + (2 - 2)^2

D = 3

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

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step-by-step explanation:

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