SOLUTION: A 28 ft. ladder is leaning halfway up a 40 foot building. How far from the building should ladder be placed? (Round answer to the nearest foot)

Question 363000: A 28 ft. ladder is leaning halfway up a 40 foot building. How far from the building should ladder be placed? (Round answer to the nearest foot)
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
A 28 ft. ladder is leaning halfway up a 40 foot building. How far from the building should ladder be placed? (Round answer to the nearest foot)
.
halfway up the building would be 20 ft.
.
apply pythagorean theorem
let x = distance from building
then
x^2 + 20^2 = 28^2
x^2 = 28^2 - 20^2
x^2 = 784 - 400
x^2 = 384
x = 19.5959
x = 20 feet (rounded)
RELATED QUESTIONS
A 28 ft. ladder is leaning halfway up a 40 foot building. How far from the building... (answered by jim_thompson5910)

A 30-ft ladder is leaning against a building. If the foot of the ladder is 10 ft away... (answered by ikleyn)

3. A 20 ft. ladder is placed against the wall of building the ladder touches the building (answered by mananth)

How high up on a building will a 15 ft. ladder reach if the foot of the ladder is placed... (answered by stanbon)

A 16-foot ladder is leaning against a building. How high on the building will the ladder... (answered by Earlsdon)

a 20 ft ladder is placed against a building so that the foot of the ladder is 12 ft. from (answered by josgarithmetic,ikleyn)

A 40 foot ladder is leaning against a building so that the distance from the bottom of... (answered by ikleyn)

A 16 foot ladder is leaning up against a building, 7 feet from the wall. How highs the... (answered by nerdybill)

A ladder is leaning against the side of a building . The ladder is 30 feet long, and the... (answered by littlealice,jim_thompson5910)