(follow up) i forgot how to do these (perimeter and area)

Well the area would be 49 because Area is LxW so 7x7 = 49. That is how you find area. Perimeter is L+L+W+W so all the sides added together so the perimeter on this shape would be  25 because 3+7=10 and 7+4=11 10+11 = 21 then + 4 = 25 

Hope this helps!

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Step-by-step explanation: