Sandeep starts walking towards the north from a point and walks 30 m. He turns…

Sandeep starts walking towards the north from a point and walks 30 m. He turns to the

right and walks 30 m. He turns to the left and walks 20 m. He turns to the left and walks

30 m. Finally, he turns to the left and walks 30 m. How far is he now from the starting

point? (All turns are 90 degrees turns only unless specified.)