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15 votes
Find y
y
A.4
B. 4√2
C. 8
D. 2√2
X
30°
4√3

Find y y A.4 B. 4√2 C. 8 D. 2√2 X 30° 4√3-example-1

1 Answer

5 votes

Explanation:

z = 4√3

y = ?

Z° = 90° - 30° = 60°

Y° = 30°

• Find y.

y/sin(Y) = z/sin(Z)

y/sin(30°) = 4√3/sin(60°)

y/(1/2) = 4√3/(1/2 √3)

y . 1/2 √3 = 4√3 . 1/2

y . 1/2 √3 = 2√3

y = 2√3 . 2/√3

y = 4√3/√3

y = 4

The answer is A.

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