Question

http://prntscr.com/m5hini

Answer 1

@Vocaloid

Answer 2

any ideas? try to find the ratio between the sides on the smaller triangle and the ratio between the sides on the larger triangle

Answer 3

im not sure

Answer 4

lower leg of big triangle/left leg of big triangle

lower leg of small triangle/left leg of small triangle

see if these two ratios are equal or not.

Answer 5

they are equal

Answer 6

good so corresponding sides have the same ratio, making the triangles similar

Answer 7

SAS similarity theorem if you want to be more precise

Answer 8

thank you