Kira drew pqr and stu so that p s, q t, pr = 12, and su = 3. are pqr and stu similar? if so, identify the similarity postulate or theorem that applies.

a. similar - sss
b. similar - aa
c. similar - sas
d. cannot be determined

Can someone me with this problem . show your work .

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¯¯¯¯¯¯¯¯)?

If value of cos330° is √3/2 then find tan165°.