Question

Is the square root of 87 rational of irrational? Please explain why

Answer 1

We have 9^2 = 81 and 10^2 = 100;

So, 81 < 87 < 100;

9^2 < 87 < ( 9 + 1 )^2;

9 <
`√(87)` < 10;

Finally,
`√(87)` is irrational.