alex three legged stool

123456
Across
  1. 3. cardboard squares
  2. 4. animal that swings in trees
  3. 5. building machines
  4. 6. A square + B square = C square
Down
  1. 1. study of space
  2. 2. better pancake
  3. 3. sport using hoops
  4. 4. block game