Square of 29
29 squared equals 841. Squares appear in area calculations, the Pythagorean theorem, and statistics (variance uses squared distances).
Squares obey quiet rules. Divided by 9, a square only ever leaves 0, 1, 4 or 7 — 4 here. On the last digit, squares end only in 0, 1, 4, 5, 6 or 9, and 1 fits. Between its neighbors, 784 sits 57 below and 900 sits 59 above — the square ladder widens by exactly two at every step. An odd base keeps the square odd: 841 ends in an odd digit, as every odd square must. Two anchors most worth memorizing in this range are 12² = 144 and 15² = 225 — the odd-step rule above is why knowing them pays off, because from any anchor the next square is one step along this page's ladder.
| Expression | Value |
|---|---|
| 29² | 841 |
Frequently asked questions
What is 29 squared?
29 squared is 841, because 29 × 29 = 841. The exponent 2 is why it is written 29².
What is 30 squared, next to 29²?
30² = 900, which is 59 more than 29² = 841. Each step up adds double the base plus one.
Where do squares show up in real problems?
Area of a square with side 29, distance in the Pythagorean theorem, and variance in statistics all use squared values.