How would I find the area of the following figure? https://s.yimg.com/hd/answers/i/9a5e6850a38644ff80e81235e434cff8_A.jpeg?a=answers&mr=0&x=1488954864&s=b882526d21938ecbdb45169663f93258

I get the error that its is 'unauthorised' when I attempt a search, so I can't see the figure. What is this?

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