How good were you in Geometry? Remember words like area and perimeter?
Test your knowledge in geometry with this picture riddle.
Find the perimeter of ABCDE in the picture below;
If you get the correct perimeter, leave your answers in the comment section and then share it with your friends on WhatsApp, Facebook and other social networking sites.
[showhide more_text=”Show Answer” less_text=”Hide Answer”]
WE can see that 3 sides of ABCD are equal to 10 which means if we complete the quadrilateral ABCD by adding the line AD it would be a square.
So AD will also be equal to 10.
If you now consider the triangle AED you can find out from the given information that angles EAD & EDA are equal to 60 degrees.
So we can conclude that AED is an equilateral triangle.
So all sides will be equal;
AE = ED = AD = 10
So to find the perimeter of ABCDE we have to add all the sides of it;
AB + BC + CD + DE + EA = 10 + 10 + 10 + 10 + 10 = 50
Therefore;
Perimeter of ABCDE = 50
[/showhide]