Question

- A painter leans a 28-foot ladder against a house so that the base of the ladder is 9 feet from

the house. How high up the house does the ladder reach?

Answer 1

26.51

Explanation:

`a^(2)` +
`b^(2)` =
`c^(2)`

`9^(2)` +
`b^(2)` =
`28^(2)`

81 +
`b^(2)` = 784

-81. =. -81

`b^(2)`. = 703

`√(b)` =
`√(703)`

b = 26.51 (rounded)