What is the measure of AC? A
30°
E
90° A
N
Ĉ
O A. 150°
B. 300
C. 1200
D. 90°

21.4 i did it already for s1

step-by-step explanation:

8 2/3 is the answer

step-by-step explanation: just use a calculator

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