Question

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

Answer 1

Answer:

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

Step-by-step 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:

$step - 1 : define$

$\sin( {30}^{o} ) = \frac{a}{12}$

$step - 2 : solve$

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

Answer 2

A = 6 (making this longer lol)