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- Engr. RonaldLv 74 months agoFavorite Answer
use the law of sine

...a............b

------- = ---------

sin(A).....sin(B)

..10...........8

------- = --------

sin(A).......3/4

10(3/4) = 8sin(A)

15/2 = 8sin(A)

sin(A) = 15/16 Answer//

Answer is c. 15/16

- Anonymous4 months ago
If you’re black it’d be Nigonometry

- King LeoLv 74 months ago
sinA / a = sinB / b

sinA = ( a / b ) sinB

sinA = ( 10 / 8 )( 3 / 4 ) sinA = 15/16

—————> answer c:

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- 4 months ago
(1/2) * a * c * sin(B) = (1/2) * b * c * sin(A)

a * sin(B) = b * sin(A)

(a/b) * sin(B) = sin(A)

(10/8) * (3/4) = sin(A)

(5/4) * (3/4) = sin(A)

15/16 = sin(A)

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