AB = 13 + 2y, BC = 12, AC = 1 + 32

y = 4 so AB= 21

Step-by-step explanation:

The whole segment is AC which 33 and BC which is part of the segment is 12 when you subtract those two it will be 21 and that will be the length of AB.

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

a and c

step-by-step explanation: