Answer:
A. 20.5 In
Explanation:
hello there, in order to solve a trigonometry solution you must know the law of cos sin rule..
please remember this formula...
1. SOH.. Sin Ø =

2. CAH..

3. TOA

Based on the question.. the value is given such as
ø=35°
hypotenus = 25 inch
find the BC which is the adjacent..
so we have the value for hypotenus and the angle.. the only relationship that suits this category is CAH .
FORMULA FOR CAH
COS Ø = ADJACENT/ HYPOTENUS
then now we substitute the value given

bring up the 25 to cos 35..

calculate the value of BC


so the length of BC is equals to 20.47 or 20.5 In