Classify the pair of angles, (complementary, supplementary, or vertical), then find the value of X.

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

State if the two triangles are congruent. if they are, state how you know?

What is the ratio of the length of an object in yards to the length of the same object in miles?