In triangle ABC, the measure of ∠B is 90°, BC=16, and AC=20. Triangle DEF is similar to triangle ABC, where vertices D, E, and F correspond to vertices A, B, and C, respectively, and each side of triangle DEF is
1
3
the length of the corresponding side of triangle ABC. What is the value of sinF? PLZ HELP
similar triangles have congruent corresponding angles.
angle F is the same as angle C
sinF = sinC = 3/5
You should easily recognize ABC as a familiar 3-4-5 right triangle, scaled up.