Question

which is the constellation which has seven stars of which four are at the corners of the quadrangle .the line is passing through the three middle stars of the constellation.

Answer 1

The seven star constellation which are four corner of a quadrangle is Orion.

Orion is one of the largest and most recognizable of the constellations.

It was named after Orion, a hunter in Greek mythology. Its brightest stars are Rigel and Betelgeuse, and other stars are Bellatrix and Saiph— which form a large roughly rectangular shape.  

The line passes through the three middle Star of the constellation Orion named—Alnitak, Alnilam and Mintaka. 

Answer 2

It is called Orion. Orion is the most prominent star in the orbit. It is also known as hunter in Greek Mythology.

It is very easily recognised at night. Some have taken it very deeply in their culture, and use it as symbol in their cultural life. It has 7 stars with four at the corners.