A painter places an 8.5 ft ladder against a wall. The bottom of the ladder is 4 ft from the base of the wall. How high up the wall does the ladder reach? (hint: round to the nearest tenth)

Answer 1

a^2 + b^2 = c^2

4^2 + b^2 = 8.5^2

16 + b^2 = 72.25

b^2 = 56.25

b = 7.5 feet

Answer 2

It's 7.5 not 8 ft?

Answer 3

The square root of 56.25 = 7.5. That answer is to the nearest tenth.

Answer 4

Very very unsafe placement of a ladder.

Answer 5

a.
3 ft
c.
7.5 ft
b.
16 ft
d.
11.6 ft