# Euler problems/161 to 170

### From HaskellWiki

## 1 Problem 161

Triominoes

Solution:

problem_161 = undefined

## 2 Problem 162

Hexadecimal numbers

Solution:

problem_162 = undefined

## 3 Problem 163

Cross-hatched triangles

Solution:

problem_163 = undefined

Triominoes

Solution:

problem_161 = undefined

Hexadecimal numbers

Solution:

problem_162 = undefined

Cross-hatched triangles

Solution:

problem_163 = undefined