# SAT Math: Solving for y When Given Radian Length

If S represents the origin and ∠RST measures radians, what is the value of y?

Additional Topics in Math | Congruence and similarity |

Product Type | SAT Math |

SAT | SAT Math |

SAT Math | Additional Topics in Math Geometry and Measurement |

Test Prep | SAT Math |

### Transcript

pie over three radiance What is the value of why

Okay Well why Oh why are we looking for why

we're so used to looking for acts were flexible though

To make this problem at least a bit more familiar

Let's convert that radiant measure into degrees Remember we've got

S Opie radiance over three their time one hundred eighty

over pi radiance That sixty degrees right there At least

that's a start The big secret about trigonometry is found

in its first three letters Trick try Angle triangles are

always somehow involved with trigonometry In this particular case we're

dealing with a right triangle so draw one right inside

the circle And when in doubt just always do that

on a problem like this Well that angle has been

labeled thanks to our unit conversion We can also label

the sides of a triangle using the point to why

and X is the horizontal access right there So the

horse on a leg must measure to But well we

don't know what Why is the proportions of the sides

on a thirty sixty ninety triangle would be helpful right

about now and well we have them So they're right

They're multiplying too By square with three yields Are y

value So we get to Times Square with three Yeah 00:01:27.02 --> [endTime] it's seek We're not