1. Fathom Lab 3.3a
Was Leonardo Correct?

2. Leonardo’s Rules Height is equal to the span of outstretched arms.
Kneeling height is three-fourths the standing height.
The length of the hand is one-ninth the height.

3. Leonardo’s Rules Height is equal to the span of outstretched arms.
height = arm span or
arm span = height

4. Leonardo’s Rules
Kneeling height is three-fourths the standing height.

5. Leonardo’s Rules
The length of the hand is one-ninth the height.

6. Leonardo’s Rules Height is equal to the span of outstretched arms.
height = arm span or
arm span = height
LSRL: arm span = height

7. Leonardo’s Rules Kneeling height is three-fourths the standing height.
LSRL: kneeling height = height

8. Leonardo’s Rules The length of the hand is one-ninth the height.
LSRL: hand length = height
Note: 1/9 = 0.111

9. Interpret Slopes
For each additional cm in height, the arm span increases by about 1.03 cm.
For each additional cm in height, the kneeling height increases by about 0.73 cm. 
For each additional cm in height, the hand length increases by about 0.12 cm.

10. Interpret r
Discuss the strength of the relationship