bobtothemaxthe1st
12.02.2020 •
Mathematics
A painter leans a 20 foot ladder against a house so that it touches the house 11 feet from the ground. How far from the base of the house does the ladder rest on the ground?
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Ответ:
This problem involves using the Pythagorean Theorem which is a^2+b^2=c^2
We already have the values of a and c, but b is unknown. So we plug in: 11^2+b^2=20^2
121+b^2=400
b^2=279
b=sqrt(279)
b=16.7
So the answer is about 16.7 ft
Hope this helped!
Ответ:
6
Step-by-step explanation:
30 ÷ 5 = 6