- A20 and 21
- B10 and 11
- C5 and 6
- D8 and 9
Step-by-Step Solution
, a whole number. The others do not give a perfect square (e.g. 100+121=221, not a square).
Answer: A) 20 and 21
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Pythagoras Property practice questions