Triangles ABC and DEF are right triangles, as shown. \triangle

folklorahhe

folklorahhe

Answered question

2021-11-29

Triangles ABC and DEF are right triangles, as shown. ABC is similar to DEF.
Which ratios are equal to cos(B) ? Choose the TWO ratios that apply.

Answer & Explanation

breisgaoyz

breisgaoyz

Beginner2021-11-30Added 14 answers

Step 1
Solytion-Given thet ABC and DEF avenight tnangle and ABC≈≈DEF
Now as we know
cosθ=BaseHyotenuse
2)cosB=BCAB1
Step 2
Now by similanty vation pvoperty we know
ABDE=BCEF
EFDE=BCAB(2)
from (1)and (2)
cosB=EFDE
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