Question

Marcia is 1.5 meters tall. she casts a shadow that is 2 meters long. a nearby building casts a shadow that is 24 meters long. how tall is the building?

Answer 1

ratio and proportion

height:shadow=1.5:2

for the building, shadow=24

1.5:2=h:24
1.5/2=h/24
multiply both sides by 24
36/2=h
18=h
the building is 18 meters

Answer 2

23.5 ( the shadow of marcia is.5 longer than her ) the buildings shadow is 24 meterss so subtract .5 from 24