I need
Help do my homework because I don’t understand

Answer:
For "isTriangle", draw a line around the triangles (h and e) and write 'isTriangle' next to that line. You've now grouped the triangles.
Explanation:
Repeat for the other properties. I hope this is more simple than you thought.
Answer:
Like the other person said.. to add on... make sure to know your shapes.
Explanation:
Triangle = three sides
Square = 4 sides
Stripes = lines
etc.
Look online "shapes" for references. Good luck!!