Question

Find a, please do not guess or if your not sure. i need help not guesses for points. (it’s geometry)

Answer 1

a = 6 (making this longer lol)

Answer 2

`\huge\boxed{\boxed{a=6}}`

Explanation:

to understand this

you need to know about:

• trigonometry
• PEMDAS
• equation

tips and formulas:

• sin(30°)=½
• sin(x)=opp/hypo

let's solve:

`\sin( {30}^(o) ) = (a)/(12)`

`step - 2 : solve`

1. 
   `\tt substitute \: the \: value \: of \: \sin( {30}^(o) ) \\ \tt (1)/(2) = (a)/(12)`
2. 
   `\tt cross \: multiplication : \\ \tt2a = 12`
3. 
   `\tt divide \: both \: sides \: by \: 2 : \\ \tt (2a)/(2) = (12)/(2) \\ \therefore a = 6`