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I REALLY NEED HELP RIGHT NOW! T^T

Applying the 30-60-90 Theorem, Solve this.​

I REALLY NEED HELP RIGHT NOW! T^T Applying the 30-60-90 Theorem, Solve this.​-example-1
User Alan Han
by
8.6k points

1 Answer

7 votes

Answer:

Explanation:

take 30 degree as reference angle

using cos rule

cos 30=adjacent/hypotenuse


√(3)/2=7
√(3)/y(do cross multiplication)

14
\sqrt{3=y
√(3)

14
\sqrt3}/
√(3)=y

14=y

for x

using pythagorsa theorem

H^2=P^2+B^2

14^2=X^2+(7
√(3))^2

196=X^2+147

196-147=X^2

49=X^2


√(49)=X

7=X

User Jeroen
by
9.1k points

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