3. Find the value of x when x' is equal to 121. *
a) 65.5
b) 11
C) 12
d) 13

b) 11

Step-by-step explanation:

If x' is 121, then x would be the square root of 121 would be the answer. 11 is the square root of 121.

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