Assume the original triangle in stage 1 had a side length of one.a) Write a formula that would give the length of a side of one of the triangles at the nth stage.If we look at the stage 1 triangle, we can find it's area by multiplying one-half times the length of it's base times the length of it's height. Assume again that it has a side length of one.b) Find the height of the triangle in stage 1.c) Find the area of the triangle in stage 1.