Almost A Square, But Not Quite

Geometry Level 5

Suppose A,B,CA, B, C and DD are 4 points in space that lie on the same plane, with ABCDABCD being a quadrilateral. There are 2 perpendicular planes Π1\Pi_1 and Π2\Pi_2, such that the orthogonal projections of ABCDABCD onto these planes form a square of area 123123 each. If AB=12,|AB|=12, what is the perimeter of ABCDABCD to 1 decimal place?

×

Problem Loading...

Note Loading...

Set Loading...