In the following figure, 3 unit squares are placed side by side. Find the sum of angles a+b+c = ??.

90 degrees. tan^-1(1) + tan^-1(1/2) + tan^-1(1/3) = 45 + 27 + 18 = 90

If blue rectangle area is equal to the sum of 3 squares areas combined as in image, what is relation between a,b,c & d?

Babu has a cuboid with dimension - a x b x c and he also has 3 cubes with side lengths a, b and c respectively. What is the relation between cuboid volume and the volume of cubes?

On a 3 by 3 grid, 4 2 by 2 squares were placed. In what order were they placed?

If you think the order is 1, 2, 3, 4, then type your answer as 1234. The first square should would be the bottom-most