Question

describe an experiment to show the conditions necessary for rusting an iron​

Answer 1

Explanation:

360° since this polygon is really just two triangles and each triangle has 180°

You can also use Interior Angle Theorem:(4−2)⋅180∘=(2)⋅180∘=360

Answer 2

Answer:

Iron and steel rust when they come into contact with water and oxygen. They rust faster in salty water or acid rain. Aluminium, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminium oxide.