Answer:
u should put the question in English to so English people can also help
Answer:

Step-by-step explanation:
Since the sides of a square are equal, A = s x s so taking the square root of the square provides the length of each side
Using the Sine Rule:-
20 /sin 45 = BC / sin 30
BC = 20 sin 30 / sin45
= 20 * 1/2 / 1 / sqrt2
= 20 * 1/2 * sqrt2
= 10 sqrt2 answer
Answer:
i think the answer is letter F
Step-by-step explanation:
hope this helps can i have brainly thing if so please
The answer is (B)!!!!!!!!!!!!!!!!!!!!!!!!