Question

Based on the diagram, what is sinA

Answer 1

`\sin(A) = (BC)/(AB) = (a)/(c)`

Answer 2

`sinA = \frac {a} {c}`

Explanation:

We are given a right angled triangle ABC with the side lengths a, b and c. We are to find the value of sin A.

We know that sine is the ratio of perpendicular to hypotenuse.

So considering A as our desired angle, side a will be our perpendicular while c will be the hypotenuse.

Therefore,
`sinA = \frac {a} {c}`.