SOLUTION: A light post whose base is 30 ft from a 4 story building has fallen over. If the tip of the post is resting on the roof of the building, how tall is the post? (1 story = 10 ft)
Algebra.Com
Question 888363: A light post whose base is 30 ft from a 4 story building has fallen over. If the tip of the post is resting on the roof of the building, how tall is the post? (1 story = 10 ft)
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
The building is 40 feet tall. That's one side of your right triangle. The post is 30' from the building. That's your second side. You're asked to find the hypotenuse in this triangle.
+=
40^2 + 30^2 =
1600 + 900 =
2500 =
Take the square root of each side to get
50 = c
The pole is 50 feet long.
RELATED QUESTIONS
A light post casts a shadow that is 15 ft. long. Sarah is 5 ft. tall and is standing 4... (answered by math_tutor2020,ikleyn,MathTherapy)
A 20-ft. ladder is leaning against a building. If the distance from the bottom of the... (answered by mananth)
Please help me solve this problem.
A guy wire whose grounded end is 11 ft from... (answered by mananth)
A person of height 1.68 m is walking away from a lamp-post at 1.5 m/s. The light on the... (answered by rothauserc)
A light is placed on the ground 30 ft. from a building. A man 6 ft. tall walks
from the... (answered by KMST)
An observer on the roof of building A measures a 26° angle of depression between the... (answered by KMST)
A building is casting a 100 ft. shadow at the same time that a 5 ft. post is casting a 1... (answered by scott8148,stanbon)
1.the angle of elevation of the top of a flag post from a point on the ground level 40m... (answered by fawadhaider,xcentaur)
The roof of the building shown below has a span of 48 feet. the rafters upon which the... (answered by Alan3354)