Someone help my sister (4th grade question)

Dana has some coins. She wants to display them in an array. Which of the following numbers of coins provides only 2 arrays for Dana to choose from?

А. 10
B. 16
C.25
D. 29​

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1 is c

2 is a

3 is a

step-by-step explanation:

sorry not sure

step-by-step explanation:

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