Pls help with these questions. Thanks, will give Brainliest
and don't give me links, cus I will report you, and ban you.

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¯¯¯¯¯¯¯¯)?

Ihave trouble finding the nth term of a linear sequence

Iwill give you ! what is the measure of ∠v ?