Question

In the right triangle shown ∠A=30° and BC=4.
How long is BC?

Answer 1

Answer: I honestly don’t know

Explanation:

Answer 2

x = 2

Explanation:

Remember:

`sin \theta = (Opposite)/(Hypotenuse)`

In the triangle given, the opposite angle to 30 degrees is x and the hypotenuse is 4. Substituting these numbers into the formula gives:

`sin 30^\circ = (x)/(4)`

`x = 0.5 *4`

`x = 2`