Question

Please solve this i really need this

Answer 1

a = 8 (to nearest whole number)

Explanation:

Given:

m<B = 36°

m<C = 104°

c = 12

Required:

a

SOLUTION:

✔️First find m<A:

m<A = 180 - (104 + 36)

m<A = 40°

✔️Find a using Sine Rule:

Thus:

`(a)/(sin(A)) = (c)/(sin(C))`

Plug in the values

`(a)/(sin(40)) = (12)/(sin(104))`

Multiply both sides by sin(40)

`(a)/(sin(40)) * sin(40) = (12)/(sin(104)) * sin(40)`

`a = (12*sin(40))/(sin(104))`

`a = 8` (nearest whole number)