Three lines of crops in a garden form a triangular shape. Strawberries are planted in a 10 ft line and green beans are planted i

It likely represents an image of a triangular prism here. 

Answer:

1) 3/5

2) 40%

3) 60%

Detailed Breakdown:

You can easily calculate the result for each segment and then sum them to determine the perimeter of triangle MNK.

The true value is 25.7 ml.
The calculated error is 15.6%.
Thus, the error amount equals 0.156 times 25.7, which calculates to 4.0092 ml.

The percentage error indicates that the student's measurement could either exceed or fall short of the true value by this error amount.

This leads to two potential readings:
one possibility is: 25.7 + 4.0092 = 29.7092 ml
the other possibility is: 25.7 - 4.0092 = 21.6908 ml