Question

Triangles ABC and DEF are right triangles, as shown. A ABC is similar to A DEF

D
B
А
F
E
Which ratios are equal to cos(B)?Choose the TWO ratios that apply.

Answer 1

a/c and d/e are equal to cos(b)

Explanation:

i used substitute and solve at first, but that didnt work too well so i moved on to the guess and check method.

my guess is a/c and d/e are equal to cos(b), can anyone check this?