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gladu [14]
3 years ago
8

In ΔABC, ∠A is a right angle. What is the value of y?

Mathematics
2 answers:
Bogdan [553]3 years ago
7 0
Y = 7sin(30) = 3.5
_________
alexdok [17]3 years ago
5 0
Sin 30=y/7 
y=3.5ft 
You would start with your sin equation ( Sin angle= opposite side over hypotenuse)since you are trying to find the Opposite side length. So you would have sin 30 equals y over 7. Then you multiply over 7 to both sides.Last find the value of sin 30( sin 30=.5) and multiply that by 7, your answer is 3.5ft
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