**Measure the entire triangular window, and calculate the perimeter.**
*Measure to the nearest whole meter.*
[[☃ numeric-input 1]] meters
[[☃ measurer 1]]
[https://pixabay.com/en/window-glass-reflection-triangle-414922/
Free for commercial use, no attribution needed
https://ka-perseus-images.s3.amazonaws.com/72388e38c0034670acebee18aaed6542f23a8cc8.jpg]: