Question

what is the value of y in the triangle at the right? (sorry the picture is a little blurry)

Answer 1

Answer:

To find the length y from the given right anled triangle.

Since the given triangle is right anled triangle,

we have the following,

$\sin \theta=\frac{opposite\text{ side}}{hypotenuse}$

Let,

hypotenuse =14

opposite side=y

Substitute the values we get,

$\sin 30\degree=\frac{y}{14}$

we know that, sin 30=1/2

Using this we get,

$\frac{1}{2}=\frac{y}{14}$$y=\frac{14}{2}$$y=7$

Answer is: option D: 7