0
81 is a perfect squarebecause 81 = 9*9. It is NOT a perfect cube.
Still curious? Ask our experts.
Chat with our AI personalities
RafaThere's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
DevinI've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin
ViviYour ride-or-die bestie who's seen you through every high and low.
Chat with ViviAdd your answer:
Earn +20 ptsQ: Why is 81 both a perfect square and a perfect cube?
Write your answer...
Submit
Still have questions?
Continue Learning about Algebra
What is 81 a perfect square by what number?
81 is a perfect square because 81 = 9 x 9
What is the answer to the cube root of 729 then square it?
The cube root of 729 is 9 and 9 squared is 81.
What is the probability that a randomly selected two-digit positive integer is a perfect square or a perfect cube?
There are 90 two-digit numbers from 10 to 99. Of those, 6 are perfect squares (16, 25, 36, 49, 64, and 81) and 2 are perfect cubes (27 and 64). Each perfect square or root has a probability of 1 in 90 in being drawn.
What is the two square roots of 81?
Both 9 and -9 are square roots of 81
What is the largest perfect square factor of 405?
81 is the only one.
Trending Questions
What is the equation for a circle with a center of -4 0 and a radius of 10?
A level area with no slope?
Which Boolean operator is used when a search is limited to All of the words?
What are the common factors for 100 240 360?
Which of the following is the algebraic expression that best describes the sequence 4 8 12 16?
If the area of a rectangle is 12x2 - 19x - 21 and one side is 4x - 3 what is the other side?
If you are 4 years older than your brother two years ago you were 1.5 times as old as he was what is your present age?
Is a verb a verb?
How many feet will a snail travel in 4.80 hours if it moves at an average speed of 1.26 inches per minute?
Who makes rainwater mix with dirt math circle graph riddle?
Square root of x to the sixth power?
Evaluate the function fx equals -x2 plus 5 for x equals 4?
How many five digit numbers can you make by using 12345 and what are they?
What is the value (4 - 2) - 3 x 4?
Are squared feet and feet squared the same thing?
What is the GCF of 27 and 75 and 90?
What are the factors of 200 maths?
Is 234 divisible by 9?
What is the definition of allieteration?
If coefficients arent equal or opposite you can do a little manipulation so that you can still use the elimination method?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.