What is the perfect square between 49 and 81? Algebra Properties of Real Numbers Square Roots and Irrational Numbers 1 Answer bubulaa · Kevin B. Dec 17, 2016 Answer: #64# Explanation: From what you are asking, I believe that you are asking about the perfect square between #49# and #81#. The square root of #49# is #.7#. The square root of #81# is #9#. Therefore the middle number is #8.# #color(white)()# #8^2=64# Related questions What are square roots? How do you simplify square roots that are irrational? How do you find a square root of a decimal? How do you find a square root of a fraction? How do you estimate square roots? What is the square root of 100? What is the square root of 25? What is the square root of 1? How do I know if a square root is irrational? Why are square roots irrational? See all questions in Square Roots and Irrational Numbers Impact of this question 1078 views around the world You can reuse this answer Creative Commons License