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billy12008
27.06.2020 •
Mathematics
HELP! Sarah wanted to find out how tall a building was downtown. He father said to use a right angle and proportions. She did this by taking a yardstick outside beside the building and measured both shadows at the same time of the day. The shadow of the yardstick was 1 foot long. The shadow of the building was 20 feet long. How tall is the building?
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Ответ:
is it 20 times of the stick?
Step-by-step explanation:
x= height of stick
y= height of building
idk if i did it the right way, but i use x/y = 1/20
and pls tell me what is it called?
Ответ:
D
Step-by-step explanation: