Plsss help me with #4

In the 30-60-90 triangle below side s has a length of and side r has a length

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.

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.