Hello, Ragi!

Did you make a sketch?

A quadrilateral can have four right angles.

What is the largest number of right angles an convex octagon can have?. . . it can be done.Three

Code:o * * * * o o * * * * * * o o * * * * * * o 90° 90° o * * * * * * * * * * * * * * * * * * * 90° * * * o

Obviously, there canbe four right angles.not