I A graduated cylinder has 20 MLCM3 of water placed in an regular shaped rock is Dan dropped in graduated cylinder and volume of the rock and water in the cylinder now he’s 23 MLCN3 the mass of the rock dropped into the graduated cylinder is 23 grams

-2 is the right

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