Grades 5-6 Video Solutions 2023-2023_1-2

Video Transcription

Question 5. Ethan climbs from the bottom to the top of the cylindrical tower shown.  The steps are all of equal size. Nine steps are visible. How many steps are not visible?  To solve this question, we must count the amount of height that the tower has. When we count out  the individual rectangles, we get a total of 21. So the cylindrical tower is 21 blocks high.  Now, since there are 9 steps visible, and we see that each step is of equal length and height,  we can subtract 9, and this will mean the number of not visible steps will be 21 the total, minus 9, the number of visible, giving us our answer, which will be d, 12.

Video Summary

Ethan climbs a cylindrical tower with steps of equal size, where nine steps are visible. To find the number of steps not visible, we determine the tower's height, which has a total of 21 steps. By subtracting the 9 visible steps from this total, we find that 12 steps are not visible.