Which of these best describes the effect that the andes mountains have on the climate of south america? a) the climate along the andes mountains changes according to elevation. b) the andes form a barrier against high pressure air flowing off the pacific. c) some of the snowiest points in south america are found in the andes mountains. d) cold ocean currents in the pacific affect the climate of western countries such as chile.

The answer is A) The climate along the Andes Mountains changes according to elevation. 

The answer for your problem would be a. 7

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.