Answer: 79.18 inch.
Step-by-step explanation:
Given: For every 6 inches of height, Lashacha has an arm span of about 6.17 inches.
i.e. for each inch of height she has an arm span of = [tex]\dfrac{6.17}{6}[/tex] inches
Height of Lashacha = 6 ft 5 in.
1 ft = 12 inches
Then, Height of Lashacha = [6(12)+ 5] = 77 in.
So for 77 inch height she has arm span of [tex]\dfrac{6.17}{6}\times77=79.18\text{ inch}[/tex]
Hence, the width of her arm span = 79.18 inch.