Answer:
The sail is a right triangle.
Step-by-step explanation:
We are given the following in the question.
Measure of triangular sales are:
10.5 feet, 14 feet and 17.5 feet
We have to check whether it is a right angled triangle or not.
Pythagoras theorem:
According to this theorem the sum of of squares of two sides of triangle is equal to the square of hypotenuse of triangle. The hypotenuse is the longest side of the triangle.
Verifying:
Thus, the measurement of sail follows the Pythagoras theorem.
Hence, the sail is a right triangle.