Answer:
Refer attached figure.
Explanation:
Given: Two strings 15 inches long and 7 inches long.
We have to draw a diagram for a problem about finding the total length for two strings,15 inches long 7 inches long.
Consider the two strings 15 inches long and 7 inches long.
Consider two strings AB and BC with measure 15 inches and 7 inches long
To find the total length join one end of a string with one end of other string (as shown in figure)
Thus, 15 + 7 = 22 string