A person whose eyes are 1.50 m above the floor stands in front of a plane mirror. The top of his head is .10 m above his eyes. How far above the floor should the bottom edge of the shortest possible mirror be placed?
I know that I need to take half of a number. I just don't know if I need to take half of 1.50 or half of 1.60. Or if that's even right. HELP?!
eyes to mirror bottom to sole of shoe. They do not ask about top of mirror and top of head :)
1.6
To find the height at which the bottom edge of the shortest possible mirror should be placed, we need to calculate the sum of the person's eye height and the top of their head.
First, let's calculate the total height of the person by adding the eye height and the top of the head height:
Total height = Eye height + Top of head height
Eye height = 1.50 m
Top of head height = 0.10 m
Total height = 1.50 m + 0.10 m
Total height = 1.60 m
The person's total height is 1.60 m.
Now, you mentioned taking half of a number, but in this case, we need to take the entire height and divide it in half to determine the placement of the bottom edge of the mirror.
So, to find the height at which the bottom edge of the mirror should be placed, we divide the total height by 2:
Bottom edge height = Total height / 2
Bottom edge height = 1.60 m / 2
Bottom edge height = 0.80 m
Therefore, the bottom edge of the shortest possible mirror should be placed 0.80 meters above the floor.