Find the unknown angle:
R?
17
330
30
S

Step-by-step explanation:

Label the triangle (Best for organization)

Longest side of the triangle is called the Hypotenuse, or Hyp.

Shortest side of the triangle is called the Opposite, or Opp.

Last side of the triangle is called the Adjacent, or Adj.

Formula

x*=

Find the inverse (value for "?")

sin x*=17/30

x*=

34.5*-->35*

?=35*

Triangle interior angles amount in 180 degrees

180-(35+33)=112*

Exterior angle equals the two opposite interior angles (aka/ defined as the Exterior Angle Theorem)

R=33*+112*

R=145*

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

no

step-by-step explanation: