Answer:
x=53
Step-by-step explanation:
pythagoras theorem
a^2 + b^2 =c^2
here a and b are two small sides and c is hypotenuse (longest side)
28^2 + 45^2 = c^2
784 + 2025 =x^2
2809 =x^2
=x
53 =x
Sinx = 5/14
x = 20.9
x = 21 degrees
answer
B. 21
Answer:
B=30
Step-by-step explanation:
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