Which of the following statements about the andes mountains is true?
a.
the andes stretch from alaska to the southern tip of chile.
b.
the highest mountain in the world is located in the andes.
c.
the andes are the longest mountain chain in the world.
d.
the andes run along the shore of the atlantic ocean.

The answer is:  [C]:
 
 "The Andes are the longest mountain chain in the world." 


Note:  The Andes are the largest continental mountain chain in the world.

In a right-angled triangle: 1- the hypotenuse is the longest side2- we can apply pythagorean rule which states that: (hypotenuse)^2 = (side1)^2 + (side2)^2for the given triangle,longest side is 15 cm  side1 = 9 cmside2 is 12 cm  to check whether the triangle is right-angled or not,compare (15)^2 to the summation of (9)^2 and (12)^in other words, compare 225 to the summation of 81 and 144if they are both equal, then the triangle is right-angles, otherwise, it is not.you haven't provided the diagram showing her work, so i cannot tell the choice. however, apply my explanation to the question you have.

Do you have the photo?