I measured my building high,first I measured my high and i was 165 Cm then i staid beside the building and put the miror beside me and the building, between me and the miror was 104 Cm and the mirror to building was 78 Cm ,I did the math and that helped me to measured who much is my building’s high!!!
- i did the butterfly method.78 times 165 divide by 104 and then my building measure is 123.75 M