Shape Area ChallengeSolve shapeArea(n) challenge without iterationnick3499·FollowApr 28, 2018--1Shareinit = 1n = 1 = 1 → init + n * (n — 1) * 2 = 0n = 2 = 5 → init + n * (n — 1) * 2 = 2n = 3 = 13 → init + n * (n — 1) * 2 = 4n = 4 = 25 → init + n * (n — 1) * 2 = 6
