How will you manage an angry customer?

i would reamain calm and actively listen to what the customer is saying with out being destructed by anything, this helps understand what upset them and how you can go about it, iwould also make sure i dont take the situation personally and repeat customer concern to make sure its i understand it properly and sympathizing and apologizing to the customer is also important this is because it helps the customer feel valued and given first priority as i look for a solution