PLEASE EXPLAIN YOUR ANSWER DO NOT JUST PUT THE ANSWER WITHOUT YOUR EXPLAINATION !!!

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Select the two pairs of figures that are similar.

Tan198=asin164=? how to solve this? ?