Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
NENA458
Group Title
The angle of elevation of a ladder leaning against a wall is 72 degree. If the ladder is 20 feet long, how far is the base of the ladder from the wall?
A, 6.2 ft b. 16.73 ft C. 19.02 ft D.21.02ft
 2 years ago
 2 years ago
NENA458 Group Title
The angle of elevation of a ladder leaning against a wall is 72 degree. If the ladder is 20 feet long, how far is the base of the ladder from the wall? A, 6.2 ft b. 16.73 ft C. 19.02 ft D.21.02ft
 2 years ago
 2 years ago

This Question is Closed

CalebBeavers Group TitleBest ResponseYou've already chosen the best response.0
dw:1349712227803:dw
 2 years ago

CalebBeavers Group TitleBest ResponseYou've already chosen the best response.0
Do you know what to do now that its drawn out?
 2 years ago

CalebBeavers Group TitleBest ResponseYou've already chosen the best response.0
Do you know that the cosine of an angle equals the adjacent side over the hypotenuse? So: cos(72)=x/20
 2 years ago

NENA458 Group TitleBest ResponseYou've already chosen the best response.0
i really dont know what to do
 2 years ago

littlepixie99 Group TitleBest ResponseYou've already chosen the best response.0
What you have to do is look at triganomitry, you have the length of the hypotanuse and need the length of the side adjacent to the angle  therefore you Cos The angle is 72, so its cos(72) = adj/hyp = adj/20. so times both sides by 20 = 20*cos(72) = the distance of the wall from the base of the ladder Equals 6.18 (2dp)
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.